1.

The range of a projectile is R when the angle of projection is \[40{}^\circ \]. For the same velocity of projection and range, the other possible angle of projection is

A. \[45{}^\circ \]              
B.        \[50{}^\circ \]  
C. \[60{}^\circ \]              
D.        \[40{}^\circ \]
Answer» C. \[60{}^\circ \]              


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