Friction is the resistance to motion of one object moving relative to another
Friction is the resistance to motion of one object moving relative to anotherFriction is the resistance to motion of one object moving relative to anotherFriction is the resistance to motion of one object moving relative to anotherFriction is the resistance to motion of one object moving relative to anotherFriction is the resistance to motion of one object moving relative to another
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