A ball is initially at rest in your hand. You then accelerate your hand upwards at 20 m/s2 for 0.1 s and release the ball.
a) How far a distance did you lift the ball through?
b) How fast was the ball going when you released it?
c) How high will the ball go (from the release point)?
d) How long will it take for the ball to return to the height at which it was released?