1. When starting a foot race, a 84.6 kg sprinter exerts an average force of 644 N backward on the ground for 0.763 s. (a) What is his final speed (in m/s)? _____ m/s (b) How far does he travel (in m)? _____ m
Added by Javier V.
Step 1
Given: Force (F) = 644 N Mass (m) = 84.6 kg Acceleration (a) = F / m Acceleration (a) = 644 N / 84.6 kg Acceleration (a) = 7.61 m/s^2 Show more…
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