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A sled with mass 8.00 kg moves in a straight line on a

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

Solution for problem 23E 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 23E

A sled with mass 8.00 kg moves in a straight line on a frictionless horizontal surface. At one point in its path, its speed is 4.00 m/s; after it has traveled 2.50 m beyond this point, its speed is 6.00 m/s. Use the work-energy theorem to find the force acting on the sled, assuming that this force is constant anti that it acts in the direction of the sled’s motion.

Step-by-Step Solution:

Solution 23E Step 1: As per the question, the mass of the sled, m = 8 kg Initial velocity of the sled, u = 4 m/s Final velocity of the sled, v = 6 m/s The distance travelled, S = 2.50 m According to the work- energy theorem, the change in kinetic energy = work done on the system That is, W = KE 2 2 KE = ½ mv - ½ mu KE = (½ × 8 kg × 6 m /s ) - (½ × 8 kg × 4 m /s ) 2 2 2 2 2 2 2 KE = ½ × 8 kg × (36 m /s - 16 m /s ) KE = ½ × 8 kg × 20 m /s = 80 J 2 2

Step 2 of 2

Chapter 6, Problem 23E is Solved
Textbook: University Physics
Edition: 13
Author: Hugh D. Young, Roger A. Freedman
ISBN: 9780321675460

The answer to “A sled with mass 8.00 kg moves in a straight line on a frictionless horizontal surface. At one point in its path, its speed is 4.00 m/s; after it has traveled 2.50 m beyond this point, its speed is 6.00 m/s. Use the work-energy theorem to find the force acting on the sled, assuming that this force is constant anti that it acts in the direction of the sled’s motion.” is broken down into a number of easy to follow steps, and 70 words. This full solution covers the following key subjects: its, sled, speed, point, Force. This expansive textbook survival guide covers 26 chapters, and 2929 solutions. This textbook survival guide was created for the textbook: University Physics, edition: 13. The full step-by-step solution to problem: 23E from chapter: 6 was answered by , our top Physics solution expert on 05/06/17, 06:07PM. University Physics was written by and is associated to the ISBN: 9780321675460. Since the solution to 23E from 6 chapter was answered, more than 1816 students have viewed the full step-by-step answer.

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