A 45 kg block of ice slides down a frictionless incline l.5 m long and 0.91 m
Question:
A 45 kg block of ice slides down a frictionless incline l.5 m long and 0.91 m high, a worker pushes up against the ice, parallel to the incline, so that the block slides down at constant speed.
(a) Find the magnitude of the worker's force. How much work is done on the block by?
(b) The worker's force,
(c) The gravitational force on the block,
(d) The normal force on the block from the surface of the incline, and
(e) The net force on the block?
Step by Step Answer:
a The component of the force of gravity exerted on the ice block of mass m along the inclin...View the full answer
Fundamentals of Physics
ISBN: 978-0471758013
8th Extended edition
Authors: Jearl Walker, Halliday Resnick
Related Video
In Physics, a force is an influence that can change the motion of an object. A force can cause an object with mass to change its velocity, i.e., to accelerate. Force can also be described intuitively as a push or a pull. A force has both magnitude and direction, making it a vector quantity. In this video, the concept of force and torque is demonstrated with the practical application of changing the flat tire of the car.
Students also viewed these Mechanics questions
-
How much work is done on the steam when 1.00 mol of water at 100C boils and becomes 1.00 mol of steam at 100C at 1.00 atm pressure? Assuming the steam to behave as an ideal gas, determine the change...
-
How much work is done on the bowstring of Example 6.9 to draw it back by 20.0 cm? [Rather than recalculate from scratch, use proportional reasoning.]
-
A very slippery block of ice slides down a smooth ramp tilted at angle . The ice is released from rest at vertical height h above the bottom of the ramp. Find an expression for the speed of the ice...
-
Aneko Company reports the following ($000s): net sales of $14,800 for 2018 and $13,990 for 2017; end-of-year total assets of $19,100 for 2018 and $17,900 for 2017. Compute its total asset turnover...
-
Explain the relative risk of the various types of securities in which a money market fund may invest.
-
Use a tax service, such as United States Tax Reporter, to answer the following questions: a. If your school provides an athletic scholarship to an athlete, does the athlete have gross income? b. Can...
-
Write a brief paragraph describing a product or service with which you were dissatisfied, and explain what the problem was. Did you complain? If so, what specific steps did you take, and what was the...
-
Agassi Manufacturing Company uses a job order cost system in each of its three manufacturing departments. Manufacturing overhead is applied to jobs on the basis of direct labor cost in Department D,...
-
Nell Corporation stock is currently selling for $40.75. The stock is expected to pay a dividend of $3.25 at the end of the year. Dividends are expected to grow at a constant rate of 5% indefinitely....
-
Marysville Family Machinery Inc. (MFMI) is a family-owned engineering firm that contracted to supply 800 items to a new customer over the period of 30 days at a discounted per item price of $3500....
-
An elevator cab has a mass of 4500 kg and can carry a maximum load of 1800 kg. If the cab is moving upward at full load at 3.80 m/s, what power is required of the force moving the cab to maintain...
-
A force F in the positive direction of an x axis acts on an object moving along the axis. If the magnitude of the force is F = 10ex/2.0 N, with x in meters, find the work done by F as the object...
-
In Exercises, find all values x = a where the function is discontinuous. For each value of x, give the limit of the function as x approaches a. Be sure to note when the limit doesnt exist. k(x) = x-1
-
To develop your idea proposal, work the problems described below. As you complete each part, make sure to show your work and carefully describe how you arrive at your final answer. Any MATLAB code or...
-
Solve: 3x22x+4. Express the solution using interval notation and graph the solution set.
-
Use the information here for Part a and b. Waves Realty reported the following accounts on its income statement: Commissions Revenue $57,000 Travel and Entertainment 4,500 Real Estate Board Fees...
-
Find the coordinates of the centroid of the region bounded by y = 25x and y = 4. The region is covered by a thin, flat plate.
-
The country of Patria is concerned about recent increases in shoe imports. It has decided to take action to at least monitor these imports and has approach you with a series of proposed measures that...
-
Which two ledger accounts would you use in recording each of the following transactions? (a) cash sales (b) rent paid by cheque (c) wages paid in cash (d) a supplier of goods paid by cheque (e) goods...
-
Evaluate how many lines there are in a true rotational spectrum of CO molecules whose natural vibration frequency is w = 4.09 1014 s1 and moment of inertia I = 1.44 1039 g cm2.
-
(a) Explain how the internal control components are usually adjusted to meet the needs of small entities. What advantages and disadvantages does this bring? (b) Assess the internal controls at...
-
In physics it is important to use mathematical approximations. Demonstrate that for small angles ( <20) tan a sin a a = a` /180 Where, is in radians and a` is in degrees. Use a calculator to find the...
-
A high fountain of water is located at the center of a circular pool as in Figure P1.61. Not wishing to get his feet wet, a student walks around the pool and measures its circumference to be 15.0 m....
-
Collectible coins are sometimes plated with gold to enhance their beauty and value. Consider a commemorative quarter-dollar advertised for sale at $4.98. It has a diameter of 24.1mm, a thickness of...
-
You own 1,000 shares of P Corporation, which is about to raise its dividend from $0.75 to $1.00 per share. The share price is currently at $50.00. You would prefer that the dividend remain at its...
-
Check my work 5 You are the owner of a local Honda dealership. Unlike other dealerships in the area, you take pride in your "No Haggle" sales policy. Last year, your dealership earned record...
-
The following data relate to the operations of Shilow Company . The following data relate to the operations of Shilow Company, a wholesale distributor of consumer goods: Current assets as of March...
Study smarter with the SolutionInn App