Question: The crate, having a weight of 50 lb, is hoisted by the pulley system and motor M. if the crate starts from rest and, by

The crate, having a weight of 50 lb, is hoisted by the pulley system and motor M. if the crate starts from rest and, by constant acceleration, attains a speed of 12 ft/s after rising 10 ft, determine the power that must be supplied to the motor at the instant s = 10 ft. The motor has an efficiency E = 0.74.

Step by Step Solution

★★★★★

3.37 Rating (150 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

1 v 2q 550 12 0 24 100 4 720 fts ... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

P-M-IM (177).docx

120 KBs Word File

Students Have Also Explored These Related Mechanics Questions!

A small barrel having a weight of 250 lb is lifted by a pair of tongs as shown. Knowing that a = 5in, determine the forces exerted at B and D on tong ABD 6 in. -9 in. 18 in.

The truss is fabricated using members having a weight of 10 lb/ft. Remove the external forces from the truss, and determine the force in each member due to the weight of the members. State whether...

A car that starts from rest has a constant acceleration of 4 m/s 2 . In the first 3 s the car travels a. 6 m b. 12 m c. 18 m d. 172 m

Note: To simplify calculations, you may use g = 10 m/s in all problems.V =7.5 m/s Questions 2-4 refer to the following figure: B C - NWAVAN D velocity (m/s) 1. An object is thrown horizontally to the...

Hey tutors, kindly help me with this exam prep exercise . Explanation need not be too detailed 26. [-/2 Points] DETAILS SERCP11 3.2.OP.009. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A mountain lion...

yellow group Leeds International Study Centre Foundation Year Engineering, Science and Computing Problem D: electric motor design used in mining Engineering equipment used in mines around the world...

answer all quetions Question 1 (1 point] Which requires more work: lifting a 7-kg rock to a height of 1.8 m without acceleration or accelerating the same rock horizontally from rest to a speed of 6...

QUESTION 1 A driver in a car traveling at a speed of 28.8 m's sees a deer 100 m away on the road. Calculate the minimum constant acceleration that is necessary of the car to stop without hitting the...

47. (II) In Fig. 4-56 the coefficient of static friction between mass m and the table is 0.40, whereas the coefficient of kinetic friction is 0.20. (a) What minimum value MA of mA will keep the...

Answer all the questions Question 1 {1 point] A ball is being twirled in a circle at the end of a string. The string provides the centripetal force needed to keep the ball moving in a circle at...

Techno, a unit of Outdoor Corporation, manufactures a line of electric, cordless, lawn mowers. Senior management of Outdoor Corporation has noticed that Techno has been producing more lawn mowers...

What is the difference between a time-series graph and a scatter diagram? Suppose you have data on the unemployment rate and the inflation rate between 1970 and 2011. To determine if there is a...

[ 1 0 Points ] Given that q ( x ) = l n [ ( x 2 + 3 ) 4 x 3 - 2 x 2 + x + 5 ] ( a ) Expand q ( x ) [ H i n t :Apply the laws o f logarithm ]

Explain how Non-controlling Interests are reported?

Consider the following three compounds: cyclohexanol, 2-butanone, and 2-butanol. Using HETCOR (IH vs. 13C two dimensional NMR), which of the compounds above could show at least one carbon atom...

26) On a frictionless horizontal table, two blocks (A of mass 2.00 kg and B of mass 3.00 kg) are pressed together against an ideal massless spring that stores 75.0 Jof elastic potential energy. The...

Which of the following molecules would be expected to NOT be an effective antiviral drug? H. H. NH2 NH2 H. H H OH H. H. NH2 NH2

Indicate which of the following instructions are legal and which are illgal, why? 1. MOV DS 2468H 2. MOV BP 23B1H 3. MOV DX,6678H 4. MOV CS.34A7H 5. MOV BX,SS S

For each of the following lists of premises, derive the indicated conclusion and complete the justification. For double negation, avoid the occurrence of triple tildes. Exercise 6 has two possible...

The YTM on a bond is the interest rate you earn on your investment if interest rates dont change. If you actually sell the bond before it matures, your realized return is known as the holding period...

5 marks 3. Consider the set T whose elements are all the factors of 1000 and denote a relation 1' C T x T such that orb if a is a factor of b. i. Verify that (T,1') is a poset. ii. Give the least...

Dantzler Corporation is a fast-growing supplier of office products. Analysts project the following free cash flows (FCFs) during the next 3 years, after which FCF is expected to grow at a constant 4%...