An object of mass 80kg is pulled on a horizontal rough ground by a force of 500N. Find the coefficient of static friction. [g = 10 ms‾²]

by Sunday | Nov 9 | Physics JAMB | 0 comments

A. 0.8
B. 0.4
C. 1.0
D. 0.6

Correct Answer:

Option D – 0.6

Explanation

coefficient of friction = (F)/R = (F)/ mg = (500)/80 x 10
= 0.625

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