1.

A ball is thrown down vertically with an initial speed of 20m/s from a height of 60 m . Find (a) its speed just before it strikes the ground ans (b) how much long it takes for the ball to reach the ground . Repeat (a)and (b) for the ball thrown directly up from the same height and with the same initial speed.​

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ANSWER:

HEY GUYS answer is OPTION B



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