(i)[3]
Draw the velocity-time graph for the journey and write $T_1$ and $T_3$ in terms of $V$.
(ii)[5]
Write the total distance travelled in terms of $V$ and show that $13V^2 - 3312V + 72000 = 0$. Hence determine $V$.
Mathematics 9709 · AS & A Level · Kinematics of motion in a straight line
Draw the velocity-time graph for the journey and write $T_1$ and $T_3$ in terms of $V$.
Write the total distance travelled in terms of $V$ and show that $13V^2 - 3312V + 72000 = 0$. Hence determine $V$.
This 8-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Accurate sketch showing three straight-line sections that form a trapezium” …