Calculate the magnitude of the force required t... - JAMB Physics 1994 Question
Calculate the magnitude of the force required to just move a 20kg object along a horizontal surface if the coefficient of friction is 0.2. [g = 10ms-2]
A
400.0N
B
40.0N
C
4.0N
D
0.4N
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Correct Option: B
F = (\mu)mg
= 0.2 x 20 x 10
= 40N
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