A tennis player hits a ball vertically upwards. Initially, the ball is stationary.
Her racket is in contact with the ball for 0.030 s. The average resultant force on the ball during this time is 60 N. The ball leaves her racket at 30 m/s.
Calculate:
(i) the impulse of the force acting on the ball,
(ii) the mass of the ball,
(iii) the height to which the ball rises. Ignore air resistance (take g=10 m/s2g = 10\text{ m/s}^2g=10 m/s2).
While the racket is in contact with the ball, the ball is compressed and is no longer spherical. State the type of energy stored in the ball.
78 exam-style questions on CIE IGCSE Physics Momentum, covering Momentum. Each one has a worked solution and a mark scheme showing where the marks go.