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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? (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? (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?

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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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? (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?
Transcribed Image Text: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? (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?
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