**Unformatted text preview: **and relation between cm a and is correct for a friction force directed uphill). Combining, ( 29 , 5 7 1 sin 2 ma mR I ma β mg = + = ( 29 . sin 7 5 which from cm β g a = c) From either of the above relations between if f and , cm a , cos sin 7 2 5 2 s s cm β mg μ n μ β mg ma f = ≤ = = from which ( 29 . tan 7 2 s β ≥ μ...

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- Angular Acceleration, Friction Force, Physical quantities