As shown in the figure,a
platform with a disk on it is rotating in the shown direction.The disk
while rotating with it attains a speed of 5 m/s.The spring attached to
it has a stiffness coefficient of 4 N/m,with an unstretched length of
1 m.The weight of the disk is 2 kgs.Determine at this instant the distance
of the disk from the center of the platform where the spring is attached
to a joint.The coefficient of kinetic friction between the platform and
the disk is 0.1.
1) 2.276 m.
Free Body Diagram-