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A sled slides without friction down a small, ice-covered

Physics with MasteringPhysics | 4th Edition | ISBN: 9780321541635 | Authors: James S. Walker ISBN: 9780321541635 54

Solution for problem 68GP Chapter 8

Physics with MasteringPhysics | 4th Edition

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Physics with MasteringPhysics | 4th Edition | ISBN: 9780321541635 | Authors: James S. Walker

Physics with MasteringPhysics | 4th Edition

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Problem 68GP

Problem 68GP

A sled slides without friction down a small, ice-covered hill. If the sled starts from rest at the top of the hill, its speed at the bottom is 7.50 m/s. (a) On a second run, the sled starts with a speed of 1.50 m/s at the top. When it reaches the bottom of the hill, is its speed 9.00 m/s, more than 9.00 m/s, or less than 9.00 m/s? Explain. (b) Find the speed of the sled at the bottom of the hill after the second run.

Step-by-Step Solution:

Solution 68GP:

Step 1 of 2

Let the initial height was h.

The sled started from rest with zero initial velocity.

Finally it reached the bottom with a final speed of 7.50 m/s.

By the conservation of mechanical energy,

       .

Step 2 of 2

Chapter 8, Problem 68GP is Solved
Textbook: Physics with MasteringPhysics
Edition: 4
Author: James S. Walker
ISBN: 9780321541635

Physics with MasteringPhysics was written by and is associated to the ISBN: 9780321541635. This textbook survival guide was created for the textbook: Physics with MasteringPhysics, edition: 4. This full solution covers the following key subjects: Hill, speed, sled, bottom, its. This expansive textbook survival guide covers 32 chapters, and 3833 solutions. The full step-by-step solution to problem: 68GP from chapter: 8 was answered by , our top Physics solution expert on 07/27/17, 10:59AM. The answer to “A sled slides without friction down a small, ice-covered hill. If the sled starts from rest at the top of the hill, its speed at the bottom is 7.50 m/s. (a) On a second run, the sled starts with a speed of 1.50 m/s at the top. When it reaches the bottom of the hill, is its speed 9.00 m/s, more than 9.00 m/s, or less than 9.00 m/s? Explain. (b) Find the speed of the sled at the bottom of the hill after the second run.” is broken down into a number of easy to follow steps, and 87 words. Since the solution to 68GP from 8 chapter was answered, more than 1008 students have viewed the full step-by-step answer.

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A sled slides without friction down a small, ice-covered