Question

While you push a box you begin to decrease the force you are exerting on the box. When will the box reach static equilibrium? (1 point)
• When F
push = Ffriction
• When F
push > #friction
• When F
push < #friction
• The box will not reach static equilibrium.

Answer 1

When F_push = F_friction.

Explanation: Static equilibrium (no acceleration, at rest) occurs when the net horizontal force is zero, i.e. the applied push is balanced by the frictional force (static friction will match the push up to its maximum).