(a) The force of static friction is directly proportional to the mass of the object. As the mass of the object increases, the force of static friction required to keep it from moving also increases.
(b) The force of kinetic friction is also directly proportional to the mass of the object. As the mass of the object increases, the force of kinetic friction required to keep it moving at a constant velocity also increases.
(c) The coefficient of static friction remains constant regardless of the mass of the object. It is a property of the surfaces in contact and their roughness.
(d) The coefficient of kinetic friction also remains constant regardless of the mass of the object. It is also a property of the surfaces in contact and their roughness.
How does the mass of an object pulled along a horizontal surface affect the following
parameters?
(a) force of static friction
(b) force of kinetic friction
(c) coefficient of static friction
(d) coefficient of kinetic friction
1 answer