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A ball is dropped from a building. Heigh...

A ball is dropped from a building. Height of the building is 45 m. The ball moves under the effect of gravity.
How much time will the ball take to reach ground if it is dropped from a height of 20 m from the ground?

Text Solution

Verified by Experts

`t = sqrt((2h//g)) = sqrt((2 xx 20)/(2)) = 2`
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