Two balls are dropped to the ground from...

Two balls are dropped to the ground from different heights. One ball is dropped 2 sec after the other but they both strike the ground at the same time. If the first ball takes 5 sec to reach the ground then the diffeence in initial heights is:

20m

80m

170m

40m

Text Solution

Verified by Experts

The correct Answer is:

`H_(1)=(1)/(2)xxgxx(5)^(2)`
`H_(2)=(1)/(2)xxg(3)^(2)`

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