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A ball is released from the top of a tow...

A ball is released from the top of a tower. The ratio of work done by force of gravity in 1st second, 2nd second and 3rd second of the motion of ball is

A

`1:3:5`

B

` 1:4:16`

C

`1:9:25`

D

`1:2:3`

Text Solution

Verified by Experts

The correct Answer is:
a
`S=ut+1/2at^(2)`
but for n second
`S=ut+1/2g(2t-1)`
at second u=0,t=1
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