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A trajectory of a fighter plane is given...

A trajectory of a fighter plane is given by the relation y = x + c (when and y represents horizontal and vertical axes). The plane is moving with a constant speed of `30sqrt2 m//s`. A machine gun is mounted on the plane. When the plane is at a height of 240m from the ground, a bullet is fired from the machine-gun with a speed of 10 m/s with respect to the plane in the vertical upward direction.
(a) Calculate the time after which it will hit the ground
(b) Find the maximum height reached by the bullet.

Text Solution

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The correct Answer is:
(a) 12 sec (b) 320 m
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