All Matches

Solution Library

Expert Answer

Textbooks

Search Textbook questions, tutors and Books

Oops, something went wrong!

Change your search query and then try again

Result Not Found

Books FREE
Tutors
Study Help
Hire a Tutor
AI Study Help New

Search
Sign In
Register

study help
engineering
mechanical engineering

Questions and Answers of Mechanical Engineering

After having been pushed by an airline employee, an empty 80-lb luggage carrier A hits with a velocity of 15 ft/s an identical carrier B containing a 30-lb suitcase equipped with rollers. The impact
Two cars of the same mass run head-on into each other at C. After the collision, the cars skid with their brakes locked and come to a stop in the position shown in the lower part of the figure.
Blocks A and B each have a mass of 0.4 kg and block C has a mass of 1.2 kg. The coefficient of friction between the blocks and the plane is μk = 0.30. Initially block A is moving at a speed v0 = 3
An 8-kg cylinder C is released from rest in the position shown and drops onto a 5-kg platform A which is at rest and is supported by an inextensible cord attached to a 5-kg counterweight B. Knowing
An 8-kg cylinder C is released from rest in the position shown and drops onto a 5-kg platform A which is at rest and is supported by an inextensible cord attached to a 5-kg counterweight B. Knowing
A 0.6-lb collar A is released from rest, slides down a frictionless rod, and strikes a 1.8-lb collar B which is at rest and supported by a spring of constant 34 lb/ft. Knowing that the coefficient of
A 0.6-lb collar A is released from rest, slides down a frictionless rod, and strikes a 1.8-lb collar B which is at rest and supported by a spring of constant 34 lb/ft. Knowing that the velocity of
Ball B is hanging from an inextensible cord. An identical ball A is released from rest when it is just touching the cord and drops through the vertical distance hA = 200 mm before striking ball B.
A 2-kg sphere moving to the right with a velocity of 5 m/s strikes at A the surface of a 9-kg quarter cylinder which is initially at rest and in contact with a spring of constant 20 kN/m. The spring
A 50-lb sphere A of radius 4.5 in. moving with a velocity of magnitude v0 = 6 ft/s strikes a 4.6-lb sphere B of radius 2 in. which is hanging from an in extensible cord and is initially at rest.
A 20-lb sphere A of radius 4.5 in. moving with a velocity of magnitude v0 = 6 ft/s strikes a 2-lb sphere B of radius 2 in. which is hanging from an inextensible cord and is initially at rest. Sphere
A 340-g ball B is hanging from an inextensible cord attached to a support C. A 170-g ball A strikes B with a velocity v0 of magnitude 1.5 m/s at an angle of 60? with the vertical. Assuming perfectly
A 2-kg sphere A strikes the frictionless inclined surface of a 6-kg wedge B at a 90? angle with a velocity of magnitude 4 m/s. The wedge can roll freely on the ground and is initially at rest.
Skid marks on a drag race track indicate that the rear (drive) wheels of a car skid for the first 18 m and roll with slipping impending during the remaining 382 m. The front wheels of the car are
A 3-kg collar C slides on a frictionless vertical rod. It is pushed up into the position shown, compressing the upper spring by 50 mm and released. Determine (a) The maximum deflection of the lower
A small block slides at a speed d v = 3 m/s on a horizontal surface at a height h = 1 m above the ground. Determine (a) The angle θ at which it will leave the cylindrical surface BCD, (b) The
The system shown is in equilibrium when en φ = 0. Knowing that initially φ =90? and that block C is given a slight nudge when the system is in that position, determine the velocity of the block as
A spacecraft is describing an elliptic orbit of minimum altitude hA = 1500 mi and maximum altitude hB = 6000 mi above the surface of the earth. Determine the speed of the spacecraft at A.
A truck is traveling on a level road at a speed of 60 mi/h when its brakes are applied to slow it down to 20 mi/h. An antiskid braking system limits the braking force to a value at which the wheels
The last segment of the triple jump track-and-field event is the jump, in which the athlete makes a final leap, landing in a sand-filled pit. Assuming that the velocity of an 84-kg athlete just
At an intersection car B was traveling south and car A was traveling 30? north of east when they slammed into each other. Upon investigation it was found that after the crash the two cars got stuck
Two identical cars A and B are at rest on a loading dock with brakes released. Car C, of a slightly different style but of the same weight, has been pushed by dockworkers and hits car B with a
A 1.5-lb ball A is moving with a velocity of magnitude 18 ft/s when it is hit by a 2.5-lb ball B which has a velocity of magnitude 12 ft/s. Knowing that the coefficient of restitution is 0.8 and
A ball hits the ground at A with a velocity v0 of 6 m/s at an angle of 60? with the horizontal. Knowing that e = 0.6 between the ball and the ground and that after rebounding the ball reaches point B
A ball hits the ground at A with a velocity v0 of 6 m/s at an angle of 60? with the horizontal. Knowing that e = 0.6 between the ball and the ground and that after rebounding the ball reaches point B
Two identical 1350-kg automobiles A and B are at rest with their brakes released when B is struck by a 5400-kg truck C which is moving to the left at 8 km/h. A second collision then occurs when B
A 28-g bullet is fired with a velocity of 550 m/s into a block A, which has a mass of 5 kg. The coefficient of kinetic friction between block A and the cart BC is 0.50. Knowing that the cart has a
Car A weighing 4000 lb and car B weighing 3700 lb are at rest on a 22-ton flatcar which is also at rest. Cars A and B then accelerate and quickly reach constant speeds relative to the flatcar of 7
Car A weighing 4000 lb and car B weighing 3700 lb are at rest on a flatcar which is also at rest. Cars A and B then accelerate and quickly reach constant speeds relative to the flatcar of 7.65 ft/s
An 80-Mg railroad engine A coasting at 6.5 km/h strikes a 20-Mg flatcar C carrying a 30-Mg load B which can slide along the floor of the flatcar (μk = 0.25). Knowing that the flatcar was at rest
A bullet is fired with a horizontal velocity of 500 m/s through a 3-kg block A and becomes embedded in a 2.5-kg block B. Knowing that blocks A and B start moving with velocities of 3 m/s and 5 m/s,
A 180-lb man and a 120-lb woman stand side by side at the same end of a 300-lb boat, ready to dive, each with a 16-ft/s velocity relative to the boat. Determine the velocity of the boat after they
A 180-lb man and a 120-lb woman stand at opposite ends of a 300-lb boat, ready to dive, each with a 16-ft/s velocity relative to the boat. Determine the velocity of the boat after they have both
A system consists of three identical 9-kg particles A, B, and C. The velocities of the particles are, respectively, vA = vAj, vB = vBi, and vC = vCk. Knowing that the angular momentum of the system
A system consists of three identical 9-kg particles A, B, and C. The velocities of the particles are, respectively, vA = vAj, vB = vBi, and vC = vCk, and the magnitude of the linear momentum L of the
A 180-lb man and a 120-lb woman stand at opposite ends of a 300-lb boat, ready to dive, each with a 16-ft/s velocity relative to the boat. Determine the velocity of the boat after they have both
For the system of particles of Prob. 14.11, determine (a) The position vector r of the mass center G of the system, (b) The linear momentum mv of the system, (c) The angular momentum HG of the system
A system consists of three particles A, B, and C. We know that mA = 1 kg, mB = 2 kg, and mC = 3 kg and that the velocities of the particles expressed in m/s are, respectively, vA = 3i ?? 2j + 4k, vB
For the system of particles of Prob. 14.13, determine (a) The position vector r of the mass center G of the system, (b) The linear momentum mv of the system, (c) The angular momentum HG of the system
A 20-kg projectile is passing through the origin O with a velocity v0 = (60 m/s)i when it explodes into two fragments A and B, of 8-kg and 12-kg, respectively. Knowing that 2 s later the position of
A 500-kg space vehicle traveling with a velocity v0 = (450 m/s)i passes through the origin O at t = 0. Explosive charges then separate the vehicle into three parts A, B, and C of masses 300-kg,
Car A was at rest 27.8 ft south of the point O when it was struck in the rear by car B, which was traveling north at a speed vB. Car C, which was traveling west at a speed vC, was 120 ft east of
Car A was at rest 27.8 ft south of the point O when it was struck in the rear by car B, which was traveling north at a speed vB. Car C, which was traveling west at a speed vC, was 120 ft east of
Two 15-kg cannon balls are chained together and fired horizontally with a velocity of 165 m/s from the top of a 15-m wall. The chain breaks during the flight of the cannon balls and one of them
A 3-kg model rocket is launched vertically and reaches an altitude of 60 m with a speed of 28 m/s at the end of powered flight, time t = 0. As the rocket approaches its maximum altitude it explodes
A 3-kg model rocket is launched vertically and reaches an altitude of 60 m with a speed of 28 m/s at the end of powered flight, time t = 0. As the rocket approaches its maximum altitude it explodes
In a game of pool, ball A is traveling with a velocity v0 when it strikes balls B and C which are at rest and aligned as shown. Knowing that after the collision the three balls move in the directions
A 10,000-lb helicopter A was traveling due east at a speed of 190 mi/h and an altitude of 2400 ft when it was hit by a 13,000-lb helicopter B. As a result of the collision, both helicopters lost
A 6-lb game bird flying due east 45 ft above the ground with a velocity vB = (30 ft/s)i is hit by a 2-oz arrow with a velocity vA = (180 ft/s)j + (240 ft/s)k, where j is directed upward. Determine
In a scattering experiment, an alpha particle A is projected with the velocity u0 = ?(600 m/s)i + (750 m/s)j ? (800m/s)k into a stream of oxygen nuclei with a common velocity v0 = (600 m/s)j . After
An 18-lb shell moving with a velocity v0 = (60 ft/s)i??(45 ft/s) j ?? (1800 ft/s)k explodes at point D into three fragments A, B, and C weighing, respectively, 8 lb, 6 lb, and 4 lb. Knowing that the
A 6-lb shell moving with a velocity ?? v0k explodes at point D into three fragments which hit the vertical wall at the points indicated. Fragments A, B, and C hit the wall 0.010 s, 0.018 s, and 0.012
Derive the relation HO = r × mv + HG between the angular moment a HO and HG defined in Eqs (14.7) and (14.24), respectively. The vectors r and v define, respectively, the position and velocity of
Consider the frame of reference Ax?? y?? z?? in translation with respect to the Newtonian frame of reference Oxyz. We define the angular momentum H??A of a system of n particles about A as the sum of
Show that the relation ΣMA = HA, where H??A is defined by Eq. (1) of Prob. 14.29 and where ΣMA represents the sum of the moments about A of the external forces acting on the system of particles, is
In Prob. 14.6, determine the energy lost as the bullet (a) Passes through block A, (b) Becomes embedded in block B.
In Prob. 14.1, determine the energy lost as a result of the first collision and verify that the total kinetic energy is unchanged as a result of the second collision.
In Prob. 14.3, determine the total work done by the engines of cars A and B while the cars are accelerating to reach constant speeds.
In Prob. 14.27, determine the increase in kinetic energy as a result of the explosion.
Two automobiles A and B, of mass ss mA and mB, respectively, are traveling in opposite directions when they collide head on. The impact is assumed perfectly plastic, and it is further assumed that
It is assumed that each of the two automobiles involved in the collision described in Prob. 14.35 had been designed to safely withstand a test in which it crashed into a solid, immovable wall at the
In a game of pool, ball A is moving with a velocity v0= v0i when it strikes balls B and C, which are at rest side by side. Assuming frictionless surfaces and perfectly elastic impact (that is,
Solve Sample Prob. 14.4, assuming that cart A is given an initial horizontal velocity v0 while ball B is at rest.
In a game of pool, ball A is moving with a velocity v0 of magnitude v0 = 15 ft/s when it strikes balls B and C, which are at rest and aligned as shown. Knowing that after the collision the three
In a game of pool, ball A is moving with a velocity v0 of magnitude v0 = 15 ft/s when it strikes balls B and C, which are at rest and aligned as shown. Knowing that after the collision the three
Three spheres, each of mass m, can slide freely on a frictionless, horizontal surface. Spheres A and B are attached to an inextensible, inelastic cord of length l and are at rest in the position
Three spheres, each of mass m, can slide freely on a frictionless, horizontal surface. Spheres A and B are attached to an inextensible, inelastic cord of length l and are at rest in the position
Ball B is suspended from a cord of length l attached to cart A, which can roll freely on a frictionless, horizontal track. The ball and the cart have the same mass m. If the ball is given an initial
A 6-kg block B starts from rest and slides on the 10-kg wedge A, which is supported by a horizontal surface. Neglecting friction, determine (a) The velocity of B relative to A after it has slid 1 m
Four small disks A, B, C, and D can slide freely on a frictionless horizontal surface. Disks B, C, and D are connected by light rods and are at rest in the position shown when disk B is struck
Four small disks A, B, C, and D can slide freely on a frictionless horizontal surface. Disks B, C, and D are connected by light rods and are at rest in the position shown when disk B is struck
Two small spheres A and B, respectively of mass m and 2m, are connected by a rigid rod of length l and negligible mass. The two spheres are resting on a horizontal, frictionless surface when A is
A 750-lb space vehicle traveling with a velocity v0 = (1500 ft/s)k passes through the origin O. Explosive charges then separate the vehicle into three parts A, B and C, weighing, respectively, 125lb,
Three small spheres A, B, and C, each of mass m, are connected to a small ring D of negligible mass by means of three inextensible, inelastic cords of length l. The spheres can slide freely on a
Three small spheres A, B, and C, each of mass m, are connected to a small ring D of mass 2m by means of three inextensible, inelastic cords of length l which are equally spaced. The spheres can slide
Three identical small spheres, each of weight 2 lb, can slide freely on a horizontal frictionless surface. Spheres B and C are connected by a light rod and are at rest in the position shown when
Three identical small spheres, each of weight 2 lb, can slide freely on a horizontal frictionless surface. Spheres B and C are connected by a light rod and are at rest in the position shown when
Two small disks, A and B, weighing 4.8 lb and 2.4 lb, respectively, can slide on a horizontal, frictionless surface. They are connected by a cord, 3 ft long, and spin counterclockwise about their
Two small disks, A and B, of weighing 6 lb and 3 lb, respectively, can slide on a horizontal and frictionless surface. They are connected by a cord of negligible mass and spin about their mass center
In a game of billiards, ball A is given an initial velocity v0 along the longitudinal axis of the table. It hits ball B and then ball C, which are both at rest. Balls A and C are observed to hit the
For the game of billiards of Prob. 14.55, it is now assumed that v0 =5 m/s,vC = 3.2 m/s, and c = 1.22 m. Determine (a) the velocities vA and vB of balls A and B, (b) the point A?? where ball A hits
Three small identical spheres A, B, and C, which can slide on a horizontal, frictionless surface, are attached to three strings of length l which are tied to a ring G. Initially the spheres rotate
Three small identical spheres A, B, and C, which can slide on a horizontal, frictionless surface, are attached to three strings, 75 mm long, which are tied to a ring G. Initially the spheres rotate
A stream of water of cross-sectional area A and velocity v1 strikes a plate which is held motionless by a force P. Determine the magnitude of P, knowing that A = 500 mm2, v1 = 25 m/s and V =0.
A stream of water of cross-sectional area A and velocity v1 strikes a plate which moves to the right with a velocity V. Determine the magnitude of V, knowing that A = 600 mm2, v1 = 30 m/s and P =
The nozzle shown discharges a stream of water at a flow rate Q = 475 gal/min with a velocity v of magnitude 60 ft/s. The stream is split into two streams with equal flow rates by a wedge which is
The nozzle shown discharges a stream of water at a flow rate Q = 500 gal/min with a velocity v of magnitude 48 ft/s. The stream is split into two streams of equal flow rates by a wedge which is
Tree limbs and branches are being fed at A at the rate of 10 lb/s into a shredder which spews the resulting wood chips at C with a velocity of 60 ft/s. Determine the horizontal component of the force
A hose discharges water at a rate of 8 m3/min with a velocity of 50 m/s from the bow of a fireboat. Determine the thrust developed by the engine to keep the fireboat in a stationaryposition.
Sand falls from three hoppers onto a conveyor belt at a rate of 40 kg/s for each hopper. The sand hits the belt with a vertical velocity 1 v = 3 m/s and is discharged at A with a horizontal velocity
Knowing that the blade AB of Sample Prob. 14.7 is in the shape of an arc of a circle, show that the resultant force F exerted by the blade on the stream is applied at the midpoint C of the arc AB.
The nozzle shown discharges water at the rate of 800 L/min. Knowing that at both B and C the stream of water moves with a velocity of magnitude 30 m/s, and neglecting the weight of the vane,
The nozzle shown discharges water at the rate of 40 ft3/min. Knowing that at both A and B the stream of water moves with a velocity of magnitude 75 ft/s and neglecting the weight of the vane,
The nozzle shown discharges water at the rate of 40 ft3/min. Knowing that at both A and B the stream of water moves with a velocity of magnitude 75 ft/s and neglecting the weight of the vane,
A stream of water flowing at a rate of 300 gal/min and moving with a velocity of magnitude v at both A and B is deflected by a vane welded to a hinged plate. The combined weight of the vane and plate
The total drag due to air friction on a jet airplane traveling at 900 km/h is 35 kN. Knowing that the exhaust velocity is 600 m/s relative to the airplane, determine the mass of air which must pass
Prior to take-off the pilot of a 6000-lb twin-engine airplane tests the reversible-pitch propellers by increasing the reverse thrust with the brakes at point B locked. Knowing that point G is the
Prior to take-off the pilot of a 6000-lb twin-engine airplane tests the reversible-pitch propellers with the brakes at point B locked. Knowing that the velocity of the air in the two 6.6-ft-diameter
The jet engine shown scoops in air at A at a rate of 90 kg/s and discharges it at B with a velocity of 600 m/s relative to the airplane. Determine the magnitude and line of action of the propulsive
The helicopter shown can produce a maximum downward air speed of 24 m/s in a 9-m-diameter slipstream. Knowing that the weight of the helicopter and crew is 15 kN and assuming ρ = 1.21 kg/m3 for air,

Showing 11000 - 11100 of 18208

First
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
Last

Services

Sitemap
Fun
Definitions
Become Tutor
Study Help Categories
Recent Questions
Expert Questions

Company Info

Security
Copyrights
Privacy Policy
Terms & Conditions
SolutionInn Fee
Scholarship

Get In Touch

About Us
Contact Us
Career
Jobs
FAQ
Campus Ambassador

Secure Payment

Download Our App

© 2024 SolutionInn. All Rights Reserved