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
Correct Answer: Option B
Explanation
F = (mu)mg
= 0.2 x 20 x 10
= 40N