Problem : A gun kept on a straight horizontal road is used to hit a car, travelling along the same road away from the gun with a uniform speed of 72 km/hr. The car is at a distance of 500 metre from the gun, when the gun is fired at an angle of 45? with the horizontal. Find
(a) the distance of the car from the gun when the shell hits it,
(b) the speed of the projection of the shell from the gun.
Solution : will be posted tomorrow