A) \[90{}^\circ \]
B) \[60{}^\circ \]
C) \[30{}^\circ \]
D) \[45{}^\circ \]
Correct Answer: B
Solution :
Let the shell hit the plane at the point B after time t (figure) \[200\,t={{v}_{0}}\cos \theta \times t\] \[\cos \theta =\frac{200}{{{v}_{0}}}=\frac{200}{400}=\frac{1}{2}\] \[\therefore \] \[\theta ={{60}^{o}}\] Hence, the correction option is (d).You need to login to perform this action.
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