An attacker at the base of a castle wall 4 m high throws a rock straight up with speed 7.5 m/s from a height of 1.5 m above the ground. (a) Will the rock exceed the top of the wall? (b) If so, what is its speed when it reaches the top of the wall? Page 4 of 7 4 (c) If we don’t want the stone to exceed the top of the wall (we want the top of the wall to be the maximum height) what the initial speed that the stone must have?

An attacker at the base of a castle wall 4 m high throws a rock straight up with speed 7.5 m/s from a height of 1.5 m above the ground. (a) Will the rock exceed the top of the wall? (b) If so, what is its speed when it reaches the top of the wall? Page 4 of 7 4 (c) If we don’t want the stone to exceed the top of the wall (we want the top of the wall to be the maximum height) what the initial speed that the stone must have?

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 8CQ: A bottle rocket is shot straight up in the air with a speed 30 m/s. if the air resistance is...

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