d. 2:5:7
0. A ball is released from the top of a tower of height H. It takes T second to reach ground.
What is the time required to reach half of tower (H/2)
a. T2
b.
d 1/2
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A ball is released from the top of a tower. The ratio of work done by force of gravity in first, second and third second of the motion of the ball is
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