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
Verified Correct Answer: B.
Physical Principles & Numerical Solution
F = \(\mu\)mg
= 0.2 x 20 x 10
= 40N
Source: Myschool Past Questions Archive (Record #27869)