A) 40 s
B) 30 s
C) 51 s
D) 25 s
E) 15s
Correct Answer: C
Solution :
\[T=\frac{u\,\sin \theta }{g}\] Given, \[u=1000\text{ }m/s,\] \[\theta =30{}^\circ ,g=9.8m/{{s}^{2}}\] \[T=\frac{1000\times \sin 30{}^\circ }{9.8}=51\,s\]You need to login to perform this action.
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