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If muk is the coefficient of kinetic fr...

If `mu_k` is the coefficient of kinetic friction, `mu_r` the coefficient of rolling friction and `mu_s` the coefficient of static friction, then

A

`mu_sgtmu_kgtmu_r`

B

`mu_sgtmu_kgtmu_r`

C

`mu_sgtmu_kgtmu_r`

D

`mu_sgtmu_rgtmu_k`

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The correct Answer is:
A
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