If the static friction between two surfaces X and Y is found to be 20 N, then the rolling friction between these two surfaces should most likely be:
(a) 25 N
(b) 20 N
(c) 5 N
(d) 50 N

Academic Physics NCERT Class 8

As known that rolling friction is always much lesser than the static friction between the two surfaces. So, rolling friction should be less than $20\ N$.

So, option (c) is correct.

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Updated on: 10-Oct-2022

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