A) \[73{}^\circ \]
B) \[30{}^\circ \]
C) \[60{}^\circ \]
D) \[45{}^\circ \]
Correct Answer: C
Solution :
[c] Displacement of aircraft in time t=horizontal displacement of projectile \[\Rightarrow 972\times \frac{5}{18}t={{V}_{0}}\cos \theta .t\] \[\Rightarrow \cos \theta =\frac{54\times 5}{540}=\frac{1}{2}\Rightarrow \theta =60{}^\circ \]You need to login to perform this action.
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