A) Zero
B) 0.05 joule
C) 100 joule
D) 500 joule
Correct Answer: B
Solution :
\[W=\frac{1}{2}\times F\times l=\frac{1}{2}mgl\] \[=\frac{1}{2}\times 10\times 10\times 1\times {{10}^{-1}}=0.05\ J\]You need to login to perform this action.
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