A track runner, with a mass of 63.0 kg, slides on the ground after tripping and falling. At the start of the slide, the runner moves at a speed of 3.90 m/s before coming to rest. The coefficient of friction between the runner and the ground is 0.700. (a) Find the change in mechanical energy of the runner (in J) from the start of the slide to when she comes to rest. (b) How far (in m) does the runner slide?

A track runner, with a mass of 63.0 kg, slides on the ground after tripping and falling. At the start of the slide, the runner moves at a speed of 3.90 m/s before coming to rest. The coefficient of friction between the runner and the ground is 0.700. (a) Find the change in mechanical energy of the runner (in J) from the start of the slide to when she comes to rest. (b) How far (in m) does the runner slide?

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter7: Conservation Of Energy

Section: Chapter Questions

Problem 41P: A loaded ore car has a mass of 950 kg and rolls on rails with negligible friction. It starts from...

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