Subject :NSO Class : Class 3
Subject :NSO Class : Class 3
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Subject :NSO Class : Class 3
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Subject :NSO Class : Class 3
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Subject :NSO Class : Class 3
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Subject :NSO Class : Class 3
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Subject :NSO Class : Class 4
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Subject :NSO Class : Class 8
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Subject :NSO Class : Class 8
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Subject :NSO Class : Class 8
Ans 2:
Class : Class 9
I think friction is taken as one and normal force tooif we are in apparent contact with one surface then friction is onebut the actual contact is at many places so we can't say it as many frictional forces.