Can the work by kinetic friction on an object be positive? Zero?

The work done by kinetic friction on a body :

Work down by static friction on an object :

Work done by static friction on an object :

Consider following statement (A) Work done by pseudo force in non-inertial frame itself cannot be positive (B) Net work done by static friction on the system (consisting surfaces I contact) is always zero (C) Net work done by Kinetic friction on the system (consisting surfaces in contact) may be positive (D) Work done by kinetic friction on a body may be positive Select correct alternative :-

Explain the laws of kinetic friction.

The force of kinetic friction does not depend on

Assertion :- Work done is positive when force acts in the direction of displacement. Reason :- Work done by frictional force can not be positive.

Work done by a force on an object is zero, if

A : The work done by friction on an object during pure rolling motion is zero. R : In pure rolling motion, there is relative motion at the point of contact.

A : Work done by the frictional force can’t be positive. R : Frictional force is a conservative force.