A stone falls freely under gravity. It c...

A stone falls freely under gravity. It covers distances `h_1, h_2`and `h_3` in the first 5 seconds, the next 5 seconds and the next 5 seconds respectively. The relation between `h_1, h_2` and `h_3` is

`h_1=2h_2=3h_3`

`h_1=h_2/3=3h_3/5`

`h_2=3h_1` and `h_3=3h_2`

`h_1=h_2=h_3

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