martinezlittleman
24.01.2021 •
Physics
A 80kg cabinet is pushed across a floor at constant velocity. Sideways push force is 400N. What is coefficient of kinetic friction?
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Ответ:
5
Explanation:
F=mrF=frictionm=coefficient of frictionr=weight or massF=mr400=80uu=400/80u=5Ответ: