1. An object at an angle such that the horizontal range is 4 times of the maximum height .what is the angle projection of the object?
2. Football player hits the ball with speed 20 m per second with an angle 30 degree with respect too original direction .the goal post is a distance of 40 m from him. find out whether the ball reach the goal post.
3. If an object is thrown horizontally with an initial speed 10 M per second from the top of the building of height hundred metre. what is horizontal distance covered by the particle?
4. An object is thrown with initial speed 5 M per second set an angle of projection 30 .what is the height and range reached by the particle?