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A cart is moving on a level track in the positive x-direction. A force acting parallel to the x-axis is exerted on the cart. The graph above shows the net exerted on the cart as the function of displacement. As the cart travels from x = 0 to x=4 m. What is the net change of kinetic energy of the cart?

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IceShard8

Answer:

An increase of 10 J. You don't have the graph, but I know what you are talking about. The positive kinetic energy on the graph is 20 J and the negative kinetic energy on the graph is 10 J, so in total there would be a positive kinetic energy of 10 J.

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