Q 3.11: A ball is thrown horizontal from a height of 10m with velocity of 21m/s. How far off will it hit the ground and with what velocity?
Q 3.12: A bomber dropped a bomb at a height of 490m when its velocity along the horizontal was 300 km/h. (a)How long was it in air? (b) At what distance from the point vertically below the bomber at the instant the bomb was dropped, did it strike the ground?
Q 3.13: Find the angle of projection of a projectile for which its maximum height and horizontal range are equal.
Q 3.14: Prove that for angle of projection, which exceed or fall short of 45 degree by equal amount the ranges are equal.