Fan can accelerate from the starting blocks to running 11 m/s down the track in 5 seconds. What is her acceleration?

speed changes by 11m/s in 5s = 2.2 m/s^2

To find the acceleration, we can use the formula:

acceleration = (final velocity - initial velocity) / time

Given:
Initial velocity, u = 0 m/s (starting from rest)
Final velocity, v = 11 m/s
Time, t = 5 seconds

Plugging these values into the formula, we get:

acceleration = (11 m/s - 0 m/s) / 5 s
acceleration = 11 m/s / 5 s
acceleration = 2.2 m/s²

Therefore, the fan's acceleration is 2.2 m/s².