A) \[40\,\,J\]
B) \[20\,\,J\]
C) \[30\,\,J\]
D) \[10\,\,J\]
Correct Answer: B
Solution :
\[K.E.=\frac{1}{2}M{{V}^{2}}=\frac{1}{2}\times 10\times {{(2)}^{2}}=\frac{1}{2}\times 10\times 4\]\[=20\]jouleYou need to login to perform this action.
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