Question

A uniform disc of mass m and radius R starts with velocity Vo on a rough horizontal floor with
a purely sliding motion at t = 0. At t = to, disc starts rolling without sliding.
mugt
(A) Work done by frictional force upto time t = to is given by (3ugt - 2V.)
2
mugt
(B) Work done by frictional force upto time t = to is given by (2ugt -31.)
2
(C) Work done by frictional force upto time t = 21, is given by mugt(3ugt - 2V.)
(D) Work done by frictional force upto time t = 2t, is given by
mugt.
(3ugt, -2V.)
2​

Answer 1

Answer:

one by one asked.........