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A boy standing on the ground close to a building throws a ball vertically upward. From...

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Physics

A boy standing on the ground close to a building throws a ballvertically upward. From his measurements of the maximum height,y-max, to which the ball rises and the time required to reach thisheight, the boy calculates that the average velocity of the ball onits way up is 20 m/s. Five seconds after leaving the boys hand, theball is caught by a girl who has stretched her arm out of a windowsome distance above the boy. You may use -9.8 m/s^2 for the valueof g.

a. What is the velocity of the ball immediately after itsrelease?

b. How high does the ball rise; i.e., what is the value ofy-max?

c. At what height, y, above the point of release is the ballcaught?

d. What is the velocity of the ball immediately before beingcaught

Answer & Explanation Solved by verified expert
3.8 Ratings (637 Votes)
Average velocity of ball on its way upVav 20 ms gravityg 98 ms2 The initial velocity of ball Vi The velocity of the ball at the highest point Vf0 ms    See Answer
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