Question

A student is trying to push a large box of books across the carpeted floor of a university residence room. The student is exerting a horizontal force of magnitude 95 N, but the box does not budge. The magnitude (at that moment) of the frictional force exerted by the floor on the box is:a.0 Nb.less than 95 Nc.greater than 95 Nd.95 N

Answer 1

Answer: c. greater than 95 N

Step-by-step explanation:

From the information given,

applied force = 95 N

The frictional force opposing the motion is the static friction. The applied force needs to be equal to or greater than this frictional force for the box to budge. Thus, the magnitude (at that moment) of the frictional force exerted by the floor on the box is

c. greater than 95 N