The static friction force on an object
A) can never be greater than the kinetic friction force on it under the same circumstances.
B) can never accelerate the object.
C) can never be greater than the normal force on it.
D) can never be greater than the object's weight.
E) None of the choices are correct.

Question

Quizplus · Accepted Answer

Static friction can indeed be greater than kinetic friction, as it often is since it prevents motion until a certain threshold is surpassed. It can also accelerate an object by preventing sliding and allowing the object to start moving when pushed. The maximum static friction force can be greater than the object's weight if the surface provides enough resistance. It is not inherently limited to being less than the normal force; the maximum static friction is proportional to the normal force, but this doesn't mean it can't exceed the object's weight in certain situations, especially when considering the force needed to initiate movement.

The Static Friction Force on an Object