A gun kept on a straight horizontal road is used to hit a car traveling along the same road away from the gun with a uniform speed of 72 x 21/2 km/ hr. The car is at a distance of 50m from the gun when the gun is fired at an angle of 45o with the horizontal. Find
1) the distance of the car from the gun when the shell hits it.
2) the speed of projection of the shell from the gun.
