Asked by violet
Which factors can affect the amount of friction acting on an object on a solid surface?
the weight of the object and the force of a push
the type of surface and the weight of the object
the force of a push and the motion of the object
the motion of the object and the type of surface
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the type of surface and the weight of the object
Explanation: friction ≈ μN, so it depends on the surface material/roughness (μ) and the normal force (N), which for a horizontal surface is the object's weight. An applied push only indirectly affects friction by changing whether the object is at rest (static friction up to a limit) or moving (kinetic friction); a push with a vertical component can also change the normal force.
Explanation: friction ≈ μN, so it depends on the surface material/roughness (μ) and the normal force (N), which for a horizontal surface is the object's weight. An applied push only indirectly affects friction by changing whether the object is at rest (static friction up to a limit) or moving (kinetic friction); a push with a vertical component can also change the normal force.
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