A person pushes a box with a force of 30 N, but the box does not move. If the co
Practice Questions
Q1
A person pushes a box with a force of 30 N, but the box does not move. If the coefficient of static friction is 0.6, what is the maximum static friction force?
18 N
30 N
36 N
60 N
Questions & Step-by-Step Solutions
A person pushes a box with a force of 30 N, but the box does not move. If the coefficient of static friction is 0.6, what is the maximum static friction force?
Step 1: Understand that static friction is the force that keeps the box from moving when a force is applied.
Step 2: Know that the maximum static friction force can be calculated using the formula: Maximum Static Friction = Coefficient of Static Friction × Normal Force.
Step 3: In this case, the box does not move when a force of 30 N is applied, which means the static friction force is equal to the applied force.
Step 4: Therefore, the maximum static friction force is 30 N, since it matches the applied force.
Static Friction – Static friction is the force that must be overcome to start moving an object at rest. It acts in the opposite direction of the applied force.
Coefficient of Static Friction – The coefficient of static friction (μs) is a dimensionless value that represents the ratio of the maximum static friction force to the normal force acting on an object.
Force Balance – When an object is at rest and not moving, the applied force is balanced by the static friction force, meaning they are equal in magnitude.
