Can anyone help with the showing of the working out for this physics question.?

Question

Can anyone show me the working for this. I cant work it out.

If a boxer punches a sheet of paper in midair and brings it from rest up to a speed of 20.6 m/s in 0.05 seconds. What acceleration is imparted to the paper? answer units in m/s^2

Answer 1

Initial speed,u=0

Final speed,v=20.6 m/s

Time,t=0.05 seconds

Acceleration,a=(v-u)/t

                          =(20.6-0)/0.05

                           =412 m/s^2