An object loses 2.3 J of kinetic energy while sliding a distance of 35 cm and coming to rest. What was the force of kinetic friction on that object? Answer: In the figure below, FA = 24.1 N, and FB = 2.1 N. A Answer: M F B If the net force is responsible for moving this object with an average velocity of 4.60 m/s for 6.30 seconds, what is the total work that has been done on this object, in Joules?