Question 3

A small ball is dropped from a height of 2 m and bounces a few times after landing on
a cement floor. Ignore air friction.

The position-time graph below, not drawn to scale, represents the motion of the ball.

3.1 Define the term free fall. (2)

3.2 Use the graph and determine:

3.2.1 The time that the ball is in contact with the floor before the first
bounce (2)

3.2.2 The time it takes the ball to reach its maximum height after the first
bounce (2)

3.2.3 The speed at which the ball leaves the floor at the first bounce (3)

3.2.4 Time t indicated on the graph (6)

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