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if mu(s),mu(k) and mu(r) are coefficeint...

if `mu_(s),mu_(k)` and `mu_(r)` are coefficeints of static friction, sliding friction and rolling friction, then.

A

`mu_(s) lt mu_(k) lt mu_(r)`

B

`mu_(r) lt mu_(k) lt mu_(s)`

C

`mu_(k) lt mu_(s) lt mu_(r)`

D

`mu_(r) lt mu_(k) =mu_(s)`

Text Solution

Verified by Experts

The correct Answer is:
B
`mu_(s) mu_(k) and mu_(r)` in their increasing order of magnitude is
`mu_(r)ltmu_(k)ltmu_(s)`
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