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A ball (initially at rest) is released f...

A ball (initially at rest) is released from the top of a tower. The ratio of work done by the force of gravity in the first, second and third seconds is

A

`1 : 3 : 5`

B

`1 : 4 : 25`

C

`1 : 9 : 25`

D

`1 : 2 : 3`

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