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# Concepts (a) What force must be supplied by an elevator ISBN: 9780130606204 3

## Solution for problem 64PE Chapter 7

Physics: Principles with Applications | 6th Edition

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Problem 64PE

Concepts (a) What force must be supplied by an elevator cable to produce an acceleration of 0.800 m/s2 against a 200-N frictional force, if the mass of the loaded elevator is 1500 kg? (b) How much work is done by the cable in lifting the elevator 20.0 m? (c) What is the final speed of the elevator if it starts from rest? (d) How much work went into thermal energy?

Step-by-Step Solution:

Step-by-step solution Step 1 of 5 Power is the rate at which work is done, or in equation form, for the average power P for work W done over a time t. The SI unit for power is the watt (W) here 1 watt equals 1 joule/second. Step 2 of 5 (a). The force that must be supplied by an elevator cable is calculated as follows, Rewrite the above equation as follows, Substitute for , for , for and for , Hence, the force that must be supplied by an elevator cable is . Step 3 of 5 (b) Find out the work done by the cable in lifting the elevator with the use of formula, Substitute for and for d, Hence, the work done by the cable in lifting the elevator is .

Step 4 of 5

Step 5 of 5

##### ISBN: 9780130606204

Since the solution to 64PE from 7 chapter was answered, more than 579 students have viewed the full step-by-step answer. This textbook survival guide was created for the textbook: Physics: Principles with Applications, edition: 6. This full solution covers the following key subjects: elevator, cable, much, Force, work. This expansive textbook survival guide covers 35 chapters, and 3914 solutions. The answer to “Concepts (a) What force must be supplied by an elevator cable to produce an acceleration of 0.800 m/s2 against a 200-N frictional force, if the mass of the loaded elevator is 1500 kg? (b) How much work is done by the cable in lifting the elevator 20.0 m? (c) What is the final speed of the elevator if it starts from rest? (d) How much work went into thermal energy?” is broken down into a number of easy to follow steps, and 70 words. Physics: Principles with Applications was written by and is associated to the ISBN: 9780130606204. The full step-by-step solution to problem: 64PE from chapter: 7 was answered by , our top Physics solution expert on 03/03/17, 03:53PM.

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