When the surface area is less the frictional force applied will also be less?
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yes that can be the case in real life. but in Physics while doing numerical if it's not specifically mentioned to consider size, then we don't consider it. As according to it friction force depends on the Normal Reaction and Coefficient of Friction
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heya answer is here......
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Notice that the apparent area of contact appeared nowhere in the equations. Friction force depends only upon the real area of contact, not the apparent area of contact. Since it is very difficult for us to estimate the real area of contact, we often use the last equation in engineering and physics. It serves good most of the times.
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Ff∝NFf∝N
Notice that the apparent area of contact appeared nowhere in the equations. Friction force depends only upon the real area of contact, not the apparent area of contact. Since it is very difficult for us to estimate the real area of contact, we often use the last equation in engineering and physics. It serves good most of the times.
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