A ball is dropped from the top of a towe...

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

`1:2:3`

`1:4:9`

`1:3:5`

`1:5:3`

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ERRORLESS -WORK, ENERGY, POWER & COLLISION-Assertion

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