Ben is exercising his pony on a large oval track. The long is trotting at a constant speed of 10 m/s around the track. Which statement can be made about the pony's acceleration

The pony is accelerating around the track. Although the pony's speed is constant, he is repeatedly changing direction. Acceleration is a change in velocity; velocity is speed in a direction.

if you already have the answer to (a), then just work out how many periods there are in 1 minute, and that's the answer to (c).

they start with the same