A 20 kg block is in motion on a horizontal surface A horizontal force of 60N is required to keep the body moving with constant speed. What is the coefficient of kinetic friction
(g=10)
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Answer:
0.3
Explanation:
Fk = 60N,
m = 20kg,
N = mg
Kf = Fk/mg
= 60/(20×10)
= 0.3
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