![]() ![]() Two basic experimental facts describe the friction of sliding solids. The full amount of friction force that a surface can apply upon an object can be easily measured with the use of the given formula: If an object is pushed against the surface, then the frictional force will be increased and becomes extra than the weight of the object. If an object is placed against an object, then the frictional force will be the same as the weight of the object.
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