Assess: It is easy to think that the direction of the frictional force is always opposite the direction of motion, but static frictional forces are in the direction to prevent relative motion between the surfaces, and can be in various directions depending on the situation.
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Answer:
A. Friction
frictional forces
Assess: It is easy to think that the direction of the frictional force is always opposite the direction of motion, but static frictional forces are in the direction to prevent relative motion between the surfaces, and can be in various directions depending on the situation.