[MP PMT 1993]
A) \[\sqrt{Rg}\]
B) \[\sqrt{2Rg}\]
C) \[2\sqrt{\pi Rg}\]
D) \[\sqrt{\pi Rg}\]
Correct Answer: B
Solution :
By applying law of conservation of energy \[mgR=\frac{1}{2}m{{v}^{2}}\Rightarrow v=\sqrt{2Rg}\]
You need to login to perform this action.
You will be redirected in
3 sec
