A 63.0-kg sprinter starts a race with an acceleration of 4.20 m/s 2 . What is the
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A 63.0-kg sprinter starts a race with an acceleration of 4.20 m/s2. What is the net external force on him?
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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?
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