A 25.2 kg block of wood is pulled across a floor at a constant 9.74 m/s with a constant 62.7 N force. The bottom of the box has a surface area of 65.1 cm2. If the block was put on its side (which has twice the surface area of the bottom) and pulled with the same force at the same constant speed, what is the friction force between the box and the floor?
1 answer
67.2 N. Think out why.
3 answers