Question

Which of these is an example of acceleration?

A. A car maintains a constant speed of 40 km/hr.
B. A car is parked on the side of the road.
C. A speeding car brakes to a stop.
D. A car maintains a constant speed of 100 km/hr.

Answer 1

Out of all the options, velocity is changing in option c only, here final velocity is less than the initial velocity so, acceleration would be negative

In short, Your Answer would be Option C

Hope this helps!