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]
- 400.0N
-
40.0N
- 4.0N
- 0.4N
The correct answer is: B
Explanation
F = \(\mu\)mg= 0.2 x 20 x 10
= 40N