A) \[\frac{20}{3}m\]
B) 20 m
C) 60 m
D) 180 m
Correct Answer: D
Solution :
\[S\propto {{u}^{2}}\]. If u becomes 3 times then S will become 9 times i.e. \[9\times 20=180m\]You need to login to perform this action.
You will be redirected in
3 sec