A small ball is thrown horizontally at the speed of 3m / s, and its landing speed is 5m / s. The time and displacement of the ball in the air are calculated

A small ball is thrown horizontally at the speed of 3m / s, and its landing speed is 5m / s. The time and displacement of the ball in the air are calculated

Vertical velocity vy = V2 − V02 = 25 − 9 = 4m / s movement time t = vyg = 410S = 0.4s displacement x = x2 + H2 = 1.22 + 0.82 = 2.08m answer: the ball in the air movement time is 0.4s, displacement size is 2.08m