Kinematics Question 610

Question: A plane flying horizontally at a height of 1500 m with a velocity of 200 ms1 passes directly overhead on antiaircraft gun. Then the angle with the horizontal at which the gun should be fired from the shell with a muzzle velocity of 400 ms1 to hit the plane, it’s

Options:

A) 90

B)60

C) 30

D)45

Show Answer

Answer:

Correct Answer: B

Solution:

[b] Horizontal distance covered should be same for the time of coll it’sion.

400cosθ=200 or cosθ=12 or θ=60



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