A) 60
B) 45
C) 80
D) 50
Correct Answer: B
Solution :
Let height of minaret is H and body take time T to fall from top to bottom. \[H=\frac{1}{2}g{{T}^{2}}\] ?(i) In last 2 sec. body travels distance of 40meter so in \[(T-2)\]sec distance travelled \[=(H-40)\ m\]. \[(H-40)=\frac{1}{2}g{{(T-2)}^{2}}\] ?(ii) By solving (i) and (ii) \[T=3\]sec and \[H=45\ m\].You need to login to perform this action.
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