Question

A boy throws a stone upward with a velocity of 60m/s.
(c) How long will it take to reach the ground? if gravity caused by earth is -10 m/s and time taken to reach maximum height is 6 seconds?

Answer 1

Answer:

Explanation

answer is 12s

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the time to reach the ground is equal to time taken to reach maximum hight.

6+6=12seconds