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प्रश्न
Iqbal has to push a lighter box and Seema has to push a similar heavier box on the same floor. Who will have to apply a larger force and why?
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उत्तर
The force of friction arises because of the interlocking of irregularities on the two surfaces in contact. When a heavy object is placed on the floor, the interlocking of irregularities on the surfaces of the box and floor becomes strong. This is because the two surfaces in contact are pressed harder. Hence, more force is required to overcome the interlocking. Thus, Seema has to apply a greater force than Iqbal to push the heavier box.
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संबंधित प्रश्न
Friction opposes the ______ between the surfaces in contact with each other.
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What do you understand by normal force?
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Sliding friction and rolling friction are types of .................. friction.
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Friction is offered by
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Friction for an object can be reduced by
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Friction is a type of .................
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Bicycles use ...................... to reduce friction between the pedals and the crank
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List the various states of matter that offer frictional force?
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Assertion: Friction always opposes the motion.
Reason: Whenever one surface moves or tries to move over another surface, the force of friction starts acting on the surfaces.
