Question

Define work. Give s.i unit of work. Calculate the work done in pushing an iron block through a distance of 4. 5m against the force of friction equal to 200N. Also state the type of work done. Plss help me fst....

Answer 1

work is a product of Force and displacement.

Answer 2

the work by a force of one newton through a distance of  OnE meters .The SI unit of work is the joule.
work done = f*s
=200*4.5
=900j
the type of work done is negative