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