Explanation Given data: Initial velocity is 3.5 m s , Final velocity is 2.9 m s , Time taken is 5 s , and Mass of the ice skater is 55 kg. Formula used: Write the expression for acceleration. a = Δ v Δ t (1) Here, a is the acceleration, Δ v is the velocity, and Δ t is the time. Write the expression for the kinetic friction. f k = m a (2) Here, m is the mass, and a is the acceleration. Explanation: Substitute ( 3.5 − 2.9 ) m s for Δ v and 5 s for Δ t in equation

Modified Mastering Physics with Pearson eText -- Standalone Access Card -- for College Physics: A Strategic Approach (4th Edition)

4th Edition

ISBN: 9780134724744

Author: Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field

Publisher: PEARSON

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Question

Chapter 4, Problem 25P

To determine

The magnitude of the kinetic friction acting on her skates.

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Chapter 4, Problem 24P

Chapter 4, Problem 26P

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Chapter 4 Solutions

Modified Mastering Physics with Pearson eText -- Standalone Access Card -- for College Physics: A Strategic Approach (4th Edition)

Ch. 4 - If an object is not moving, does that mean that...Ch. 4 - An object moves in a straight line at a constant...Ch. 4 - If you know all of the forces acting on a moving...Ch. 4 - Three arrows are shot horizontally. They have left...Ch. 4 - Prob. 5CQ Ch. 4 - Internal injuries in vehicular acci-dents may be...Ch. 4 - Heres a great everyday use of the physics...Ch. 4 - Prob. 8CQ Ch. 4 - Suppose you are an astronaut in deep space, far...Ch. 4 - Jonathan accelerates away from a stop sign. His...

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