A body is dropped from a tower with zero...

A body is dropped from a tower with zero velocity, reaches ground in 4s. The height of the tower is about:-

80m

20m

160m

40m

Text Solution

Verified by Experts

The correct Answer is:

`h=(1)/(2)"gt"^(2)=(1)/(2)xx10xx4^(2)=80m`

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