Question:
A ball is thrown vertically upward from the roof of a
Last updated: 6/13/2023
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A ball is thrown vertically upward from the roof of a building with a certain velocity It reaches the ground is 9 s When it is thrown downward from the roof with the same initial speed it takes 4 s to come at ground How much time in second will it take to reach at ground if it just released from the rest from the roof