A girl rides a bicycle along a straight, level road. Fig. 1.1 illustrates the directions of the forces acting on the cyclist as she moves in the direction of force C.
(a(i))[1]
State which force indicates the direction of the force due to gravity.
(a(ii))[1]
State which force indicates the direction of the force due to air resistance.
(a(iii))[1]
Force A increases and becomes greater than force C. State any effect this has on the cyclist's motion.
(b(i))[3]
Calculate the cyclist's average speed.
(b(ii))[4]
Calculate the work done by this force when the cyclist moves 250 m. Include the unit.
Worked solution & mark scheme
This 10-mark question has a full step-by-step worked solution and mark scheme. One marking point: “$D$” …