A uniform rod of mass m and lkength 2a lies at rest on rotating with angular speed omega_(0)=40rad//s is placed between two smooth walls on a rough ground. Distance between the walls isslightly greater than the diameter of the sphere . Cofficent of friction between the sphere and the ground is mu=0.1. Spherewill stop rotating after time t=.......s.

A uniform rod of mass m and lkength 2a lies at rest on rotating with a

1.	A uniform rod of mass m and lkength 2a lies at rest on rotating with angular speed omega_(0)=40rad//s is placed between two smooth walls on a rough ground. Distance between the walls isslightly greater than the diameter of the sphere . Cofficent of friction between the sphere and the ground is mu=0.1. Spherewill stop rotating after time t=.......s.
Answer» `(4)/(13)mv^(2)` `(1)/(4)mv^(2)` `(8)/(25)mv^(2)` NONE of these Answer :C