Physics (AS & A Level) · Oct / Nov 2021 · Paper 12 · Question 6

The graph shows the variation with time $t$ of the velocity of a vehicle moving in a straight line. The vehicle, moving at $4.0\,\mathrm{m\,s^{-1}}$, begins to accelerate at time $t = 0$. What is the vehicle's acceleration at time $t = 3.0\,\mathrm{s}$?

1. A$0.67\,\mathrm{m\,s^{-2}}$
2. B$1.0\,\mathrm{m\,s^{-2}}$
3. C$1.3\,\mathrm{m\,s^{-2}}$
4. D$2.0\,\mathrm{m\,s^{-2}}$

As printed in the paper