Question: 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
(A) 1: 2: 3
(B) 1: 4: 9
(C) 1: 3: 5
(D) 1: 5: 3
Answer: Option (C)
Solution:
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
with
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