During a race, a sprinter increases from 5.0 m/s to 7.5 m/s over a period of 1.25 s. What is the sprinter’s average acceleration during this period? _____m/s/s

acceleration is the rate of change of velocity the speed has increased from 5 m/s to 7.5 m/s over a period of 1.25 s the formula to calculate acceleration is as follows[tex] a = \frac{v-u}{t} [/tex]where a - accelerationu - initial velocity v - final velocity t - timesubstituting the values in the equation [tex] a = \frac{7.5 m/s - 5.0 m/s}{1.25 s} = \frac{2.5}{1.25} = 2 [/tex]acceleration is 2 m/s²

Acceleration = Change in Velocity/Time taken                      = 2.5/1.25                       = 2m/s^2 (or 2m/s/s)