While a crate rests on a horizontal floor the friction force acting on the crate is
A)zero.
B)equal to the weight of the crate.
C)between zero and the weight of the crate.
D)none of the above

Question

Quizplus · Accepted Answer

The friction force acting on the crate is between zero and the weight of the crate. The friction force opposes the motion of the crate, but since the crate is at rest, the force of static friction acting on the crate is equal and opposite to the force applied to it, which may be due to its weight or any other external force. Therefore, the frictional force must be less than or equal to the weight of the crate.

While a Crate Rests on a Horizontal Floor the Friction