why is sliding friction less than static friction? and why is rolling friction less than sliding friction?
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When an object slides across the ground, it has much more surface area in direct contact with the ground, which means that the amount of friction is significantly higher. When an object rolls along the ground, only a minuscule point on the object contacts the ground at any point in time, making the stopping force much weaker.
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Explanation:
during sliding contact points do not get enough time to get interlocked properly. Therefore, less friction . but, when an object is as rest , the surface interlock well, therefore, friction is more . this explain why is sliding friction less than static friction
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