A cricket ball is thrown vertically upwards into the air. Air resistance is not negligible.
Which of the following statements is correct at the instant the ball reaches its maximum height?
The acceleration of the ball is equal to the acceleration due to gravity, ggg, directed downwards.
The net force on the ball is zero.
The drag force on the ball is equal to its weight.
There is still an upward force acting on the ball from the initial throw.
10 exam-style questions on OCR A A Level Physics Forces in action, covering Dynamics, Motion with non-uniform acceleration, Equilibrium, and Density and pressure. Each one has a worked solution and a mark scheme showing where the marks go.