A) \[P=\frac{2}{3}E\]
B) \[P=\frac{1}{3}E\]
C) \[P=\frac{1}{2}E\]
D) \[P=3E\]
Correct Answer: A
Solution :
[a] \[P=\frac{1}{3}Nm{{c}^{2}}=\frac{2}{3}\times \left( \frac{1}{2}Nm \right){{c}^{2}}=\frac{2}{3}K.E.\]
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