4. A child of mass 42.4 kg slides down a slide 3.55 m high. a. Determine the gravitational potential energy at the top of the slide. c. b. If there is no friction, how fast will the child be going at the bottom of the slide? If there is some friction and the slide is only 80% efficient in converting gravitational potential energy to kinetic energy determine the speed of the child at the bottom of the slideD

4. A child of mass 42.4 kg slides down a slide 3.55 m high. a. Determine the gravitational potential energy at the top of the slide. c. b. If there is no friction, how fast will the child be going at the bottom of the slide? If there is some friction and the slide is only 80% efficient in converting gravitational potential energy to kinetic energy determine the speed of the child at the bottom of the slideD

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 5OQ: Answer yes or no to each of the following questions. (a) Can an objectEarth system have kinetic...

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