Question

Stanley the horse is trotting down a country lane at 3.5 m/s. A bird flies out of a hedge and startles Stanley, who gallops off at 11 m/s. The change in velocity takes 3 seconds. Calculate Stanley’s acceleration.

Answer 1

To calculate Stanley's acceleration, we can use the formula:

acceleration = (change in velocity) / (time taken)

The change in velocity is the final velocity minus the initial velocity, which is 11 m/s - 3.5 m/s = 7.5 m/s.

Given that the time taken is 3 seconds, we can now calculate the acceleration:

acceleration = 7.5 m/s / 3 s = 2.5 m/s^2

Therefore, Stanley's acceleration is 2.5 m/s^2.