A uniform disc of mass m and radius R starts with velocity V0 on rough horizontal floor with a purely sliding motion at t=0 as shown. At t=t0, disc starts rolling without sliding. Then (Coefficient of frictions is mu)

A uniform disc of mass m and radius R starts with velocity V0 on rough

1.	A uniform disc of mass m and radius R starts with velocity V0 on rough horizontal floor with a purely sliding motion at t=0 as shown. At t=t0, disc starts rolling without sliding. Then (Coefficient of frictions is mu)
Answer» Net work done by FRICTIONAL force upto time `t LT t_(0)` is given by `(m mu"GT")/(2)(3mu"gt"-2V_(0))` Net work done by friction force upto time `t lt t_(0)` is given by `(m mu"gt")/(2)(2mu"gt"-V_(0))` Net work done by frictional force upto time `t=2t_(0)` is given by `mmu"gt"_(0)(2mu"gt"_(0)-V_(0))` Net work done by friction force upto time `t=2t_(0)` is given by `(mmu"gt"_(0))/(2)(3mu"gt"_(0)-2V_(0))` Answer :A::D