a gun,kept on straight horizontal ground is used to hit a car, traveling along the same road away from the gun with a uniform speed of 72km/h.The car is at a distance of 500m from the gun. when the gun is fired at an angle of 45 degrees with the horizontal. find
(1) the distance of the car from the gun when the shell hit it
(2) the speed of projection of the shell from the gun
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