A) \[{{y}_{\max }}\,=\,\,20\,m\]
B) \[{{y}_{\max }}\,=\,\,15\,m\]
C) \[{{y}_{\max }}\,=\,\,11\,m\]
D) \[{{y}_{\max }}\,=\,\,5\,m\]
Correct Answer: C
Solution :
\[Work\text{ }done\text{ }=\text{ }Gain\text{ }in\text{ }potential\text{ }energy\] \[Area\text{ }under\text{ }curve\text{ }=mgh\] \[\Rightarrow \,\,\,\frac{1}{2}\,\,\times \,11\,\,\times \,\,100\,\,=\,\,5\times 10\times h\] \[\Rightarrow \,\,\,h=11\,\,m\]
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