A) \[7\,\,m\]
B) \[5\,\,m\]
C) \[8\,\,m\]
D) \[6\,\,m\]
Correct Answer: C
Solution :
\[80%\]of\[mgh=mgh'\] \[\Rightarrow \]\[{{h}^{1}}=\frac{8}{10}\times h=\frac{8\times 10}{10}=8\,\,m\].You need to login to perform this action.
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