Question

A rightward force is applied to a 67-kg object to move it across a rough surface at constant velocity, as the object encounters 15 N of frictional force. The normal force the floor must apply to the box is ___?

Answer 1

657.3 N

Step-by-step explanation:

The normal force is simply mg = 67 (9.81) = 657.3 N

The force of friction is irrelevant in this question unless there is a follow -up asking you to calculate the Kinetic Friction coefficient ....