Peter Parker wants to move his 32 kg sofa to a different room in the house. He places ”sofa sliders,”slippery disks with mk= 0.080, under the feet of the sofa. He then pushes the sofa at a steady 0.40 m/s across the floor. How much force does he apply to the sofa?
Peter Parker wants to move his 32 kg sofa to a different room in the house....
A large refrigerator (mass 95kg) sits at rest inside a house. The homeowner wants to move the refrigerator across the room, so she begins to push it. The coefficient of static friction between the refrigerator and the floor is 0.6, and the coefficient of kinetic friction is 0.5. The homeowner applies a horizontal force of 400N on the refrigerator. What is the magnitude of the force of friction acting on the refrigerator as she applies that force?