An object of mass 80 kg is pulled on a horizontal rough g...
An object of mass 80 kg is pulled on a horizontal rough ground by a force of 500 N. Find the coefficient of static friction.
[g = 10 ms-2]
0.8
0.4
1.0
0.6
Correct answer is D
coefficient of friction
= FR
=Fmg
= 50080×10
= 0.625
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