Show the necessary steps forthis physics question

A 2kg object is pushed along a horizontal rough surface through a distance of 10 m if the coefficient of sliding between the object and the surface is 0.2 how much work is done against friction?

2kg is mass and we need weight (force due to gravity) so we multiply the mass by the acceleration due to gravity which is 9.81 m/s^2

so 2*9.81=19.62 Newtons

the force required to move an object across a surface with friction is equal to the the weight (19.62 N) times the coefficient of kinetic friction (.2)

so .2*19.62=3.924 Newtons

it takes a force of 3.924 Newtons to slide the object across the surface.

work is equal to the force being exerted (3.924 N) times the distance through which the object is being moved (10 meters)

so 3.924*10=39.24 Joules

it takes 39.24 Joules of work to move the object 10 meters.

time is irrelevant to find the work. if you knew how long it took to move the object through the 10 meters you could solve for power. but your question didn't ask for power.

Time in physics is defined by its measurement: time is what a clock reads.[1] It is a scalar quantity and, like length, mass, and charge, is usually described as a fundamental quantity. Time can be combined mathematically with other physical quantities to derive other concepts such as motion, kinetic energy and time-dependent fields. Timekeeping is a complex of technological and scientific issues, and part of the foundation of recordkeeping.