31 m/s
Increasing the height from which it is released increases the height to which it rebounds.
39 m\s downward
No. They both hit the ground at the same time, because the VERTICAL component of velocity in both cases is the same.
No. They both hit the ground at the same time. This is because the VERTICAL component of velocity in both cases is the same.
1.39 Ns up
The height to which a dropped ball rebounds is typically significantly greater than the height of the ball. Also, incidentally, the height of the ball usually doesn't change during the event, and remains equal to its original height.
75%
Because they undergo an acceleration. Free fall velocity is the function of a square.
Zero meters
Yes, assuming the ball has elasticity and you haven't exceeded the height where the ball, when dropped, reaches terminal velocity.
All other factors equal (bullet mass & frontal area, angle of barrel, etc) a higher muzzle velocity will make the bullet travel further horizontally as if falls to the ground. If the barrel is level when fired , the bullet will hit the ground at the same time as a bullet dropped simutaneously from muzzle height
yes up to a certain point as there is more kinetic energy involved.The height of its bounce is limited by its terminal velocity