A) \[50\,\,W\]
B) \[50\times 20\,\,W\]
C) \[80\,\,W\]
D) \[50\times 20\times 2\,\,W\]
Correct Answer: C
Solution :
\[W=mgh=40\times 10\times 0.2\times 50\] \[P=\frac{W}{t}=\frac{40\times 10\times 0.2\times 50}{50}=80\,\,W\]You need to login to perform this action.
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