A 63.0-kg sprinter starts a race with an acceleration of $4.20 m/s^{2}$ . What is the net external force on him?

Name: A 63.0-kg sprinter starts a race with an acceleration of 4.20 m/s ^2.… | College Physics Answers
Uploaded: 2018-02-22T20:54:17.000Z
Duration: 17 s
Description: A 63.0-kg sprinter starts a race with an acceleration of 4.20 m/s ^2. What is the net external force on him?