A tennis ball thrown from the top of a building is given an initial velocity of 20 m/s straight upward. The building is 50 m high, and the ball just misses the edge of the roof on its way down. Using t = 0 as the time the ball leaves the thrower’s hand, determine a. the time at which the ball reaches its maximum height b. the maximum height c. the time at which the ball returns to the height from which it was thrown d. the velocity of the ball at this instant e. the velocity and position of the ball at t = 5 s

A tennis ball thrown from the top of a building is given an initial velocity of 20 m/s straight upward. The building is 50 m high, and the ball just misses the edge of the roof on its way down. Using t = 0 as the time the ball leaves the thrower’s hand, determine a. the time at which the ball reaches its maximum height b. the maximum height c. the time at which the ball returns to the height from which it was thrown d. the velocity of the ball at this instant e. the velocity and position of the ball at t = 5 s

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter2: Kinematics

Section: Chapter Questions

Problem 47PE: (a) Calculate the height of a cliff if it takes 2.35 s for a rock to hit the ground when it is...

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b. the maximum height

c. the time at which the ball returns to the height from which it was thrown

d. the velocity of the ball at this instant

e. the velocity and position of the ball at t = 5 s

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