The three students leave school together and head to a bridge. They stay together on the bridge for three minutes, then each one returns to school separately.
The distance-time graphs for student A, student B and student C are shown in Fig. 2.1.
(a(i))[1]
Determine the distance between the school and the bridge.
(a(ii))[4]
Calculate the students' average speed while they walk to the bridge. Give your answer in $\text{m s}^{-1}$.
(b)[2]
State which student runs. Explain how the graph shows this.
Worked solution & mark scheme
This 7-mark question has a full step-by-step worked solution and mark scheme. One marking point: “400 m.” …