You are helping your friend move a new refrigerator into his kitchen. You apply a horizontal force of 251 N in the positive x direction to try and move the 53 kg refrigerator. The coefficient of static friction is 0.69. (a) How much static frictional force does the floor exert on the refrigerator? Give both magnitude (in N) and direction. magnitude N direction ---Select--- v (b) What maximum force (in N) do you need to apply before the refrigerator starts to move? N