Sagot :
A. 0
The ball’s speed increases UNTIL it reaches a maximum height, now it reverses and starts falling back down - speed increasing in the fall till it hits the earth. But at the absolute top of the arc, speed at that instant = zero.
A. 0
The ball’s speed increases UNTIL it reaches a maximum height, now it reverses and starts falling back down - speed increasing in the fall till it hits the earth. But at the absolute top of the arc, speed at that instant = zero.