A 2.0-N force acts horizontally on a 10-N block that is initially at rest on a horizontal surface. The coefficient of static friction between the block and the surface is 0.50.
-What is the magnitude of the frictional force that acts on the block?
A)0 N
B)2 N
C)5 N
D)8 N
E)10 N

Question

Quizplus · Accepted Answer

The maximum static frictional force is calculated as the product of the coefficient of static friction (0.50) and the normal force (10 N), which equals 5 N. Since the applied force (2 N) is less than the maximum static frictional force, the frictional force equals the applied force, which is 2 N.

A 20-N Force Acts Horizontally on a 10-N Block That Is