A 40.0-kg projectile is fired at an angle of 30.0° above the horizontal with an initial speed of 1.30 x 102 m/s from the top of a cliff 134 m above level ground, where the ground is taken to be y - 0. (a) What is the initial total mechanical energy of the projectile? (b) Suppose the projectile is traveling 92.1 m/s at its maximum height of y = 310 m. How much work has been done on the projectile by air friction? (c) What is the speed of the projectile immediately before it hits the ground if air friction does one and a half times as much work on the projectile when it is going down as it did when it was going up? m/s

A 40.0-kg projectile is fired at an angle of 30.0° above the horizontal with an initial speed of 1.30 x 102 m/s from the top of a cliff 134 m above level ground, where the ground is taken to be y - 0. (a) What is the initial total mechanical energy of the projectile? (b) Suppose the projectile is traveling 92.1 m/s at its maximum height of y = 310 m. How much work has been done on the projectile by air friction? (c) What is the speed of the projectile immediately before it hits the ground if air friction does one and a half times as much work on the projectile when it is going down as it did when it was going up? m/s

Name: A 40.0-kg projectile is fired at an angle of 30.0° above the horizont
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Description: A 40.0-kg projectile is fired at an angle of 30.0° above the horizontal with an initial speed of 1.30 x 102 m/s from the top of a cliff 134 m above level ground, where the ground is taken to be y = 0.(a) What is the initial total mechanical energy o

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter8: Potential Energy And Conservation Of Energy

Section: Chapter Questions

Problem 50P: A particle of mass 0.50 kg moves along the x -axis with a potential energy whose dependence on x is...

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