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A 20.0-kg cate sits at rest at the bottom of a 15.0 m-long

University Physics | 13th Edition | ISBN: 9780321675460 | Authors: Hugh D. Young, Roger A. Freedman ISBN: 9780321675460 31

Solution for problem 65P Chapter 6

University Physics | 13th Edition

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University Physics | 13th Edition | ISBN: 9780321675460 | Authors: Hugh D. Young, Roger A. Freedman

University Physics | 13th Edition

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Problem 65P

A 20.0-kg cate sits at rest at the bottom of a 15.0 m-long ramp that is inclined al 34.0° above the horizontal. A. constant horizontal force of 290 N is applied to the crate to push it up the ramp. While the crate is moving, the ramp exerts a constant frictional force on it that has magnitude 65.0 N. (a) What is the total work done on the crate during its motion from the bottom to the top of the ramp? (b) How much time does it take the crate to travel to the top of the ramp?

Step-by-Step Solution:

Solution 65P Step 1 of 3: a)The normal force is perpendicular to displacement does no work so The normal force does no work. The other work is W = (F cos )s F = (290 N)(cos 34 )15 m = 3606 J W mg= (F sin )s 0 = ( mg)(sin 34 )15 m = 20 kg × 9.8 m/s × 0.559 × 15 m = 1664 J W = f( 15 m) f = 65 N × 15 m = 975 J The total work is W totalW +FW mg + W f = 3606 J 1664 J 975 J = 987 J Step 2 of 3: b) According to work energy theorem, work done = change in kinetic energy W total (K.E)2 (K.E) 1 (K.E)1= 0 so W total (K.E)2 W totalm2 2 2 Wtotal v2= m = 2×987 J 20 kg = 9.935 m/s

Step 3 of 3

Chapter 6, Problem 65P is Solved
Textbook: University Physics
Edition: 13
Author: Hugh D. Young, Roger A. Freedman
ISBN: 9780321675460

The answer to “A 20.0-kg cate sits at rest at the bottom of a 15.0 m-long ramp that is inclined al 34.0° above the horizontal. A. constant horizontal force of 290 N is applied to the crate to push it up the ramp. While the crate is moving, the ramp exerts a constant frictional force on it that has magnitude 65.0 N. (a) What is the total work done on the crate during its motion from the bottom to the top of the ramp? (b) How much time does it take the crate to travel to the top of the ramp?” is broken down into a number of easy to follow steps, and 98 words. The full step-by-step solution to problem: 65P from chapter: 6 was answered by , our top Physics solution expert on 05/06/17, 06:07PM. Since the solution to 65P from 6 chapter was answered, more than 1234 students have viewed the full step-by-step answer. This full solution covers the following key subjects: ramp, crate, constant, bottom, top. This expansive textbook survival guide covers 26 chapters, and 2929 solutions. University Physics was written by and is associated to the ISBN: 9780321675460. This textbook survival guide was created for the textbook: University Physics, edition: 13.

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