Questions
A body falls freely from the top of a tower. It covers 36% of the total height in the last second before striking the ground level. The height of the tower is
detailed solution
Correct option is D
Let height of tower is h and body takes t time to reach to ground when it fall freely.
In last second i.e. tth sec body travels = 0.36 h
It means in rest of the time i.e. in (t-1) sec it travels
Now applying equation of motion for (t – 1) sec
From (i) and (ii) we get,
t=5sec and h=125m.
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