A girl of mass \[40\,\,kg\] climbs \[50\] stairs each of average height \[20\,\,cm\] in\[50\,\,s\]. Find the power of the girl\[(g=10\,\,m\,\,{{s}^{-2}})\]

A girl of mass \[40\,\,kg\] climbs \[50\] stairs each of average heigh

1.	A girl of mass \[40\,\,kg\] climbs \[50\] stairs each of average height \[20\,\,cm\] in\[50\,\,s\]. Find the power of the girl\[(g=10\,\,m\,\,{{s}^{-2}})\]
A.	\[50\,\,W\]
B.	\[50\times 20\,\,W\]
C.	\[80\,\,W\]
D.	\[50\times 20\times 2\,\,W\]
Answer» D. \[50\times 20\times 2\,\,W\]

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A girl of mass \[40\,\,kg\] climbs \[50\] stairs each of average height \[20\,\,cm\] in\[50\,\,s\]. Find the power of the girl\[(g=10\,\,m\,\,{{s}^{-2}})\]

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