9. Work & Energy
Intro to Calculating Work
9. Work & Energy Intro to Calculating Work
20PRACTICE PROBLEM
A car is being pulled by a tow truck along a straight road. The tow truck exerts a constant force F = (250 î + 150 ĵ) N on the car as it moves along the road. If the car experiences a displacement d = (120 î + 80 ĵ) m, determine the work done by the tow truck using: (i) W = Fd cosθ ; (ii) W = Fxdx + Fydy .
A car is being pulled by a tow truck along a straight road. The tow truck exerts a constant force F = (250 î + 150 ĵ) N on the car as it moves along the road. If the car experiences a displacement d = (120 î + 80 ĵ) m, determine the work done by the tow truck using: (i) W = Fd cosθ ; (ii) W = Fxdx + Fydy .