A boy throws a ball vertically downward at 10 m/s from a roof of a building 20 m high. (a) How long will it the ball to reach the ground? (b) What will be its speed when it strikes the ground?
A boy throws a ball vertically downward at 10 m/s from a roof of a building 20 m high. (a) How long will it the ball to reach the ground? (b) What will be its speed when it strikes the ground?
Glencoe Physics: Principles and Problems, Student Edition
1st Edition
ISBN:9780078807213
Author:Paul W. Zitzewitz
Publisher:Paul W. Zitzewitz
Chapter3: Accelerated Motion
Section: Chapter Questions
Problem 74A
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A boy throws a ball vertically downward at 10 m/s from a roof of a building 20 m high.
(a) How long will it the ball to reach the ground?
(b) What will be its speed when it strikes the ground?
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