A hollow cylinder of mass 4kg and radius 0.6m rolls without slipping with a linear speed of 3m/s. What is its angular ve
v = ωr. v = 3m/s, r = 0.6m. ω = vr = 30.6 = 5rad/s. As per NCERT, applying relevant law/formula with correct units and sign convention leads to 5 rad/s. This satisfies dimensional consistency and physical conditions given, so option B is scientifically correct.
Ref: NCERT Class 11 Physics, Thermal Properties and Gravitation.
