1.

If mu_k is the coefficient of kinetic friction, mu_l is the coefficient of rolling friction and us is the coefficient of static friction, then

Answer»

`mu_sgt mu_k GT mu_r`
`mu_s LT mu_k lt mu_r`
`mu_s lt mu_r lt mu_k`
`mu_s mu_rgt mu_k`

SOLUTION :`mu_sgt mu_k gt mu_r`


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