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

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Distance and Speed

The speed, distance and time relation forms the basis of study of motion. You will need these concepts in the study of Mechanics. This concept is applicable for students who are studying the following courses –