Question

The coefficient of kinetic friction between a refrigerator (mass 119 kg) and the floor is 0.15, and the coefficient of static friction is 0.75. After struggling to move the refrigerator, you finally apply enough force to get it moving. What is the minimum force required to keep it moving with a constant velocity?

Answer 1

To keep the refrigerator moving with a constant velocity, you would need to apply a force equal to or greater than the force of kinetic friction. In this case, the minimum force required would be the force of kinetic friction, which can be calculated by multiplying the coefficient of kinetic friction by the normal force acting on the refrigerator.