While a dog runs forward, its owner pulls back with a 22.4 N force at a 115 degree direction, doing -42.3 J (Joules) of work. How far did the dog move?
W=Fd(cos)(theta)
w= Fd(cosΘ)
-42.3 = 22.4 cos(115) d
-42.3 / (22.4 cos(115)) = d
-42.3/22.4*cos(115) = 0.7980693067698348
0.80m = d
