A) 10 m
B) 7.5 m
C) 5 m
D) 2.5 m
Correct Answer: C
Solution :
\[\frac{2u\sin \theta }{g}=2\sec \]Þ \[u\sin \theta =10\] \ \[H=\frac{{{u}^{2}}{{\sin }^{2}}\theta }{2g}=\frac{100}{2g}=5m\]
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