A solid disc and a ring, both of radius 10 cm are placed on a horizontal table simultaneously, with initial angular speed equal to 10πrads−1. Which of the two will start to roll earlier? The co-efficient of kinetic friction is μk=0.2.

A solid disc and a ring, both of radius 10 cm are placed on a horizont

1.	A solid disc and a ring, both of radius 10 cm are placed on a horizontal table simultaneously, with initial angular speed equal to 10πrads−1. Which of the two will start to roll earlier? The co-efficient of kinetic friction is μk=0.2.
Answer» A solid disc and a ring, both of radius 10 cm are placed on a horizontal table simultaneously, with initial angular speed equal to $10 π r a d s^{- 1}$ . Which of the two will start to roll earlier? The co-efficient of kinetic friction is $μ_{k} = 0.2$ .

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A solid disc and a ring, both of radius 10 cm are placed on a horizontal table simultaneously, with initial angular speed equal to 10πrads−1. Which of the two will start to roll earlier? The co-efficient of kinetic friction is μk=0.2.

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