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What factors affect the magnitude of friction?In: Motorcycle Law |
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The magnitude of frictional force depends on the surfaces that are in contact and the force pushing them together. This force is usually related to the weight of the object or objects. Surfaces that appear smooth can be rough at the microscopic level, having many ridges and grooves. The ridges of each surface can get stuck in the grooves of the other.
In fluid friction, the force depends upon the shape and speed of an object as it moves through air, water, or other fluid.
Two surfaces in contact attract one another at the molecular level, forming chemical bonds. These bonds can prevent an object from moving, even when it is pushed. If an object is in motion, these bonds form and release but take energy away from the motion of the object.
First answer by Gaines Fox. Last edit by Gaines Fox. Contributor trust: 247 [recommend contributor]. Question popularity: 4 [recommend question]
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