You are pushing a refrigerator across the floor of your kitchen. You exert a horizontal force of 297 N for 6.7 s, during which time the refrigerator moves a distance of 2.8 m at a constant velocity.
What is the work done by friction?
The Attempt at a Solution
w=297(2.8/6.7) = 124 J.
Why is this answer incorrect?
Any info to the right direction is much help :) thanks