Use the definitions to answer the questions:
(a) coeficient of static friction =
(force required to start motion)/weight
(b) coefficient of kinetic friction =
(force required to maintain constant velocity)/weight
(Make sure you use weight = M*g)
A 25 kg chair initially at rest on a horizontal floor requires 393 N horizontal force to set it in motion. Once the chair is in motion, a 301 N horizontal force keeps it moving at a constant velocity.
a) Find the coefficient of static friction between the chair and the floor.
b) Find the the coefficient of kinetic friction between the chair and the floor.
1 answer
1 answer