Physics - SHM Question with Solution | TestHub
Paragraph:A uniform thin cylindrical disk of mass and radius is attached to two identical massless springs of spring constant which are fixed to the wall as shown in the figure. The springs are attached to the axle of the disk symmetrically on either side at a distance from its centre. The axle is massless and both the springs and the axle are in a horizontal plane. The unstretched length of each spring is . The disk is initially at its equilibrium position with its centre of mass at a distance Lfrom the wall. The disk rolls without slipping with velocity The coefficient of friction is .
Question:The maximum value of for which the disk will roll without slipping is

Options:
Answer:
Solution:
In case of pure rolling, mechanical energy will remain conserved. correct option is (c).