A stone is thrown off the bridge 20 m above the river with an initial speed of 25 m/s at an angle of 45o above the horizontal Determine . (a) the time it take for the stone to strike the water below (b) the horizontal range of the stone just before it strike the water (c) the speed of the projectile just before it lands?

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
Chapter3: Motion In Two Dimensions
Section: Chapter Questions
Problem 9P
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A stone is thrown off the bridge 20 m above the river with an initial speed of 25 m/s at an angle of
45o
above the horizontal Determine .
(a) the time it take for the stone to strike the water below
(b) the horizontal range of the stone just before it strike the water
(c) the speed of the projectile just before it lands?

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