A24.0-kg block is initially at rest on a horizontal surface. a horizontal force of 73.0 n is required to set the block in motion, after which a horizontal force of 65.0 n is required to keep the block moving with constant speed. (a) find the coefficient of static friction between the block and the surface. (b) find the coefficient of kinetic friction between the block and the surface.

You are your friend move a new refrigerator into his kitchen. you apply a horizontal force of 252 n in the negative x direction to try and move the 56 kg refrigerator. the coefficient of static friction is 0.61. (a) how much static frictional force does the floor exert on the refrigerator? give both magnitude (in n) and direction. magnitude n direction (b) what maximum force (in n) do you need to apply before the refrigerator starts to move?