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(A) [(8+ 2t)-15j]m s(B) Zero(C)2t1+15)4. A plane flying horizontally at a height of 1500 m with a velocity of 200 ms-2 passes directly overhead anantiaircraft gun. Then the angle with the horizontal at which the gun should be fired for the shell with amuzzle velocity of 400 m s1 to hit the plane, is-(A) 90°(B) 60°(C) 30(D) 45* |
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