Fig. 3.1 depicts a shooting competition in which air rifles launch soft metal pellets towards distant targets. When an air rifle is discharged, it produces an impulse of $0.019\,\text{N s}$ on the pellet.
(a)[1]
Define the term impulse.
(b(i))[2]
Determine the pellet's exit speed from the rifle.
(b(ii))[3]
Determine the kinetic energy carried by the pellet as it leaves the rifle.
(c)[3]
Describe how the molecular structure of the liquid metal differs from that of the solid metal.
Worked solution & mark scheme
This 9-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Product of force and the time interval for which it acts” …