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A firecracker is thrown with velocity of 30 ms–1 in a direction which makes an angle of 75º with the vertical axis. At some point on its trajectory, the firecracker splits into two identical pieces in such a way that one piece fall 27 m far from the shooting point. Assuming that all trajectories are contained in the same plane, how far will the other piece fall from the shooting point ? (Take g = 10 ms–2 and neglect air resistance)– 

 (A) 63 m or 144 m 

(B) 72 m or 9 m 

(C) 28 m or 72 m 

(D) 63 m or 117 m 

1 Answer

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Best answer

Correct option (D) 63 m or 117 m

Explanation:

Under influence of constant force centre of mass follows its original path 

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