Work - Example Problem 7.1-8
A cart of mass m is attached to a spring, that is initially un-stretched and is pulled by force F as shown in the figure. The mass moves through a distance d along the incline. Determine the expression for the work done by all of the forces acting on the cart. Assume a linear spring with spring constant k.
Given: Neglect friction
Find: U
Video solution:
The following video walks you through the solution to this problem. It is suggested that you try solving the problem first and then, if you have difficulties with the solution, watch the video for help.
Interactive solution:
Draw a free-body diagram of the cart. Click on the figure to see the answer.
Which forces do work?