1. The problem statement, all variables and given/known data A tractor pulls a wagon with a constant force of 700N at a constant speed of 20.0 km/h. a) How much work is done by the tractor in 3.5min b) What is the tractor's power output? ANSWERS: a)8.16 x 10^6 J//b) 3888.8 watts 2. Relevant equation P=W/t or P=Fv 3. The attempt at a solution P=Fv P=700N x 20.0 P=14000J Pt=W 14000W x 210seconds=W W=2940000J I've been trying for over an hour now and I just can't get the answer. Any help will be greatly appreciated.