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A ball is thrown vertically upwards with a velocity u from top of a tower. It strikes the ground with a velocity 3u. The time taken by the ball to reach the ground is given by

A ball is thrown vertically upwards with a velocity u from top of a tower. It strikes the ground with a velocity 3u. The time taken by the ball to reach the ground is given by

Grade:11

1 Answers

akash
24 Points
8 years ago
apply v = u + at, put u =u v=3u a=10 solve the equation u will get time

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