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 pi rad/s. Which of the two will start to roll earlier ? The coefficient of kinetic friction is mu_(k)=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 10 pi rad/s. Which of the two will start to roll earlier ? The coefficient of kinetic friction is mu_(k)=0.2
Answer» Solution :The DISC would begin to ROLL earlier than the ring