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Problem 6: A constant force F changes the speed of 80 kg sprinter (athlete) from 3 m/s to 4 m/s in 0.5 seconds. Calculate the acceleration of the sprinter.

Answer

Given:           vi = 3 m/s,           vf = 4 m/s, t = 0.5 sec
Required:      Acceleration of the sprinter, a
Formula:       vf = vi + at
Put the values,