Mathematics 9709 · AS & A Level · Kinematics of motion in a straight line

Kinematics of motion in a straight line — practice question

The diagram presents the velocity-time graph for a machine cutting tool’s motion. It is made up of five straight-line sections. The tool travels forward for $8 \text{ s}$ while cutting, then needs $3 \text{ s}$ to get back to its starting point.
(i)[1]

Find the acceleration of the tool in the first $2 \text{ s}$ of the motion.

(ii)[2]

Find the forward distance travelled by the tool while cutting.

(iii)[2]

Find the greatest speed of the tool as it returns to its starting position.

Worked solution & mark scheme

This 5-mark question has a full step-by-step worked solution and mark scheme. One marking point: The acceleration is $0.09\,\text{m s}^{-2}$.

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