Straight motionThrows the ball down in the vertical speed 10 m/sec. It takes 3 seconds to reach the ground. Asked if the speed of the ball while precious few ground effects m/sec.
Moving straight into throwing the ball vertically at speeds of 10 m / s, takes three seconds to reach the ground speed of the ball that hits the ground, while a few meters / second.
The movement in a straight line threw the ball down the vertical speed of 10 meters / second time 3 seconds, it will reach the ground. Ask that the speed of the ball while the ground is a few meters / sec.