A Horizontal Force of 5 $\mu$ _s = 0 $\mu$ _k = 0

Multiple Choice

A horizontal force of 5.0 N pushes a 0.50-kg block against a vertical wall. The block is initially at rest. If $\mu$ _s = 0.6 and $\mu$ _k = 0.80, the frictional force is:

A) 0
B) 4.9 N
C) 3.0 N
D) 5.0 N
E) 4.0 N