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Home » A disc of radius R is rotating with an angular speed about a horizontal axis. It is placed on a horizontal table. The coefficient of kinetic friction is .a) what condition should be satisfied for rolling to being?b) calculate the time taken for the rolling to being
A disc of radius R is rotating with an angular speed \omega_{o} about a horizontal axis. It is placed on a horizontal table. The coefficient of kinetic friction is \mu_{k}.
a) what condition should be satisfied for rolling to being?
b) calculate the time taken for the rolling to being
CBSE | Class 11 | NCERT Exemplar | Physics | System of particles and rotational motion
A disc of radius R is rotating with an angular speed \omega_{o} about a horizontal axis. It is placed on a horizontal table. The coefficient of kinetic friction is \mu_{k}.
a) what condition should be satisfied for rolling to being?
b) calculate the time taken for the rolling to being

a) The condition that needs to be satisfied is v_{cm}=\omega_{o}R

b) Frictional force is responsible for allowing rolling motion to occur without the disc slipping.

i

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