4. A 5.0 kg block slides along a track as shown in the figure. It starts at rest from point A, hi = 7.0 m above the floor.(a) Use conservation of energy to find the speed of the block at point B if the track isfrictionless(b) Suppose the track is not frictionless and block's speed at point B is 9.5 m/s.How much work is done by the friction force when the block reaches point B?(c) What is the speed of the block at point C, h2 3.0 m above the floor (assume track isfrictionless)

Given values:Mass of the block, m = 5.0 kgh1 = 7.0 mVA = 0 m/sMechanical energy = kinetic energy +…

Answered: 4. A 5.0 kg block slides along a track…

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 23P

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