Calculate the magnitude of the force required to just move a 20kg object along a...

JAMB 1994

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 Answer: Option B

Explanation

F = \(\mu\)mg

= 0.2 x 20 x 10

= 40N

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Calculate the magnitude of the force required to just move a 20kg object along a...

Correct Answer: Option B

Explanation

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