A thin walled hollow spherical shell of mass m and radius r starts from rest and moves along atrack
Channel: Doubtnut
Date: 2020-04-12

A thin walled hollow spherical shell of mass m and radius r starts from rest and moves along atrack as shown in figure assume that shell successfully negotiates the loop.  Statement-1: Normal reaction at A is greater when friction is absent on the track as compared to the case when sphere executes pure rolling.   Statement-2: Due to frictional torque shell have larger translational velocity at A in case of pure rolling.