Can the work by kinetic firctionon an object be positive? Zero?

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

Work done by kinetic friction can be

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 :-

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 :-

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

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

Can work done by a non - conservative force be positive ?

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