Physics-
General
Easy
Question
A thin rigid uniform circular disc rolls without slipping on a horizontal rigid surface (or the ground). At a certain instant, its position w.r.t. ground frame is as shown in the figure.
- sector ABC has greater kinetic energy than sector ADC w.r.t. ground frame
- sector BO¢C has greater kinetic energy than sector CO¢D w.r.t ground frame
- sector BO¢C has the same kinetic energy as sector AO¢B w.r.t. ground frame
- all the sectors AO¢B, BO¢C, CO¢D and AO¢D have same kinetic energy w.r.t. the centre of mass frame
The correct answer is: sector BO¢C has greater kinetic energy than sector CO¢D w.r.t ground frame
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