A) \[6\]
B) \[7\]
C) \[8\]
D) \[9\]
Correct Answer: D
Solution :
\[K.E.=\frac{1}{2}m{{v}^{2}},\,\,K.E{{.}_{1}}=\frac{1}{2}mv_{1}^{2}\] \[=\frac{1}{2}m{{(3v)}^{2}}=9\,\,K.E.\] \[\therefore \]Kinetic energy increases by \[9\] times, if the velocity increases by a factor of three.You need to login to perform this action.
You will be redirected in
3 sec