(a(i))[2]
On Fig. 1.1, construct the distance-time graph for the ball. Draw an appropriate line.
(a(ii))[2]
Calculate the average speed of the ball from time $t = 0$ to time $t = 0.40\,\text{s}$.
(a(iii))[2]
Describe the method you would use with the graph in Fig. 1.1 to find the ball's speed at time $t = 0.40\,\text{s}$.
(b(i))[3]
As the ball falls, its acceleration gets smaller and finally drops to zero before it reaches the ground. Explain, in terms of the forces acting, why the acceleration decreases, and why it eventually becomes zero.
(b(ii))[1]
Describe what a distance-time graph looks like when the ball has zero acceleration.