(a)[2]
Determine the time for which the car is accelerating.
(b)[2]
Draw the velocity-time graph for the car’s motion, marking the key points.
(c)[2]
Determine the car’s average speed during the motion.
Mathematics 9709 · AS & A Level · Kinematics of motion in a straight line
Kinematics of motion in a straight line — practice question
A car begins from rest and travels in a straight line with constant acceleration over a distance of $200\,\text{m}$, arriving at a speed of $25\,\text{m s}^{-1}$. It then continues at this same speed for $400\,\text{m}$, before slowing down uniformly to rest in $5\,\text{s}$.
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