(a)[2]
State what is meant by a scalar quantity and what is meant by a vector quantity.
(b)[2]
Complete Fig. 1.1 to show whether each quantity is a scalar or a vector: power, temperature, momentum.
(c(i))[1]
On Fig. 1.2, draw an arrow labelled $R$ to represent the direction of the aircraft’s resultant velocity.
(c)
An aircraft is moving through wind. Fig. 1.2 shows the velocities for the aircraft in still air and for the wind. The velocity of the aircraft in still air is $95\,\text{m s}^{-1}$ to the west. The velocity of the wind is $28\,\text{m s}^{-1}$ from $65^{\circ}$ south of east.
(c(ii))[2]
Determine the magnitude of the aircraft’s resultant velocity.