Experimental problems of physical flat throwing motion

1. At the same height, the air movement time of flat throwing motion has nothing to do with the initial velocity.

2, the initial speed is the same, the higher the ball, the farther it is thrown and the longer it takes to land; At the same initial speed, the air movement time of horizontal throwing action increases with the increase of height.

3. Because it moves at a constant speed in the horizontal direction and makes a free fall in the vertical direction, the shooting time t is calculated by using the vertical displacement:

N1l =1/2gt2 (n1l is the distance from the first point to the starting point, and the size is the number of squares multiplied by the side length), and t is calculated;

N2L = 2gt 2 (N2L is the distance from the first point to the starting point, and the size is the number of squares multiplied by the side length), and t is calculated;

N3l = 4.5 gt 2 (N2L is the distance from the first point to the starting point, and the size is the number of squares multiplied by the side length), and t is calculated;

Find the average of t,

Then the initial velocity of flat throwing motion is calculated by V 0 = NL/T in the horizontal direction.