A) 3
B) 6
C) 9
D) Nothing can be decided
Correct Answer: C
Solution :
[c] \[F\times S=\frac{1}{2}\text{ }m{{v}^{2}}~\] or \[S\propto \,{{v}^{2}}\] When v is tripled, S becomes 9 times.You need to login to perform this action.
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