mass Example 7 15 A cord of negligible mass is wound round

Last updated: 6/14/2023

mass Example 7 15 A cord of negligible mass is wound round the rim of a fly wheel of 20 kg and radius 20 cm A steady pull of 25 N is applied on the cord as shown in Fig 7 35 The flywheel is mounted on a horizontal axle with frictionless bearings a Compute the angular acceleration of the wheel b Find the work done by the pull when 2m of the cord is unwound c Find also the kinetic energy of the wheel at this point Assume that the wheel starts from rest d Compare answers to parts b and c