(a(i))[3]
Calculate the resultant force acting on the truck.
(a(ii))[2]
State two forces that act on the truck in the direction opposite to the forward force.
(b(i))[1]
The car is moving at constant speed. On Fig. 2.1, draw an arrow to indicate the direction of the force acting on the car.
(b(ii))[2]
State two possible reasons why the car slides off the track.