Two wheels A and B of same mass are rotating with same angular velocity about their respective geometrical axis. Wheel A has radius R and wheel B has radius $$2R$$. Same breaking torque is applied on the wheels. If wheel A stops in $$1$$ minute, wheel B will stop in

Question

Infinity Learn · Accepted Answer

(1)α$$=angular$$  $$retardation=$$τ$$12mr2=$$−$$2$$τ$$mr2Using$$  ω$$=$$ω$$0$$−αt,$$O=$$  ω$$0$$−$$2$$τ$$mr2t$$⇒  $$t=$$ω$$0mr22$$τ⇒  t  α   $$r2$$∴   $$tBtA=2RR2=4$$  ⇒   $$tB=4$$ ×  $$1$$   $$min=4min$$.

Two wheels A and B of same mass are rotating with same angular velocity about their respective geometrical axis. Wheel A has radius R and wheel B has radius 2R. Same breaking torque is applied on the wheels. If wheel A stops in 1 minute, wheel B will stop in

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