(a(i).1)[1]
State the meaning of mass.
(a(i).2)[1]
State the name of an instrument used to measure mass.
(a(ii))[3]
Calculate the kinetic energy of the ball as it leaves the bat.
(b(i).1)[1]
State the term used for a negative acceleration.
(b(i).2)[1]
State how the graph indicates that the ball has a negative acceleration.
(b(ii).1)[1]
Using Fig. 8.2, find the time when the ball ceases moving upwards.
(b(ii).2)[2]
Using Fig. 8.2, find the distance the ball travels before it stops moving upwards.
(b(iii))[1]
Suggest why the graph in Fig. 8.2 is almost vertical when time = $1.84\,\text{s}$.
(b(iv))[2]
Fig. 8.2 shows that the ball stays stationary after $1.84\,\text{s}$. Describe the energy change taking place at a time of $1.84\,\text{s}$.
(c)[2]
Suggest two ways in which the velocity-time graph for the ball with a smaller mass differs from Fig. 8.2.