A tire swing hangs from a tree branch by a rope. Identify all the forces acting on the tire.

In a free-body diagram for a block sliding to the right on a horizontal surface, how does kinetic friction affect the block's motion when no other horizontal forces act on it?

In a free-body diagram, a block is pulled to the right by $12N$ while friction acts to the left with magnitude $5N$. What is the net horizontal force on the block?

In a free-body diagram, what is the correct method to find the net force on an object along a chosen axis?

In the context of free-body diagrams, which statement best describes friction?

The figure shows all the forces acting on an object. Which arrow could represent the acceleration of that object?

The figure shows all the forces acting on an object. What can you tell about the velocity of the object at this instant?

Nick is pulling a $20\mathrm{kg}$ crate across a horizontal floor with a rope angled 30° above the horizontal. The coefficients of kinetic and static friction are 0.2 and 0.3 respectively. If the crate is moving at a constant speed, what is the tension in the rope?