Physics (AS & A Level) · Oct / Nov 2017 · Paper 12 · Question 7

The velocity-time graph for a train starting at one station and stopping at the next is shown. [velocity-time graph: velocity on vertical axis, time on horizontal axis, starting at origin, rising linearly to a maximum, constant maximum, then falling linearly to zero] Another train has double the acceleration but the same maximum speed and the same deceleration. Which velocity-time graph, on the same scale, shows the motion of this train between the same stations?

1. A[velocity-time graph A: steeper rise than original, same maximum speed, same deceleration slope, shorter total time]
2. B[velocity-time graph B: steeper rise than original, same maximum speed, same deceleration slope, shorter total time]
3. C[velocity-time graph C: steeper rise than original, same maximum speed, same deceleration slope, shorter total time]
4. D[velocity-time graph D: steeper rise than original, same maximum speed, same deceleration slope, shorter total time]

As printed in the paper