A child applies a force parallel to the -axis to a 5.00- sled moving on the froz

Question

A child applies a force parallel to the -axis to a 5.00- sled moving on the frozen surface of a small pond. As the child controls the speed of the sled, the -component of the force she applies varies with the -coordinate of the sled as shown in figure . Suppose the sled is initially at rest at =0. You can ignore friction between the sled and the surface of the pond.

-Use the work-energy theorem to find the speed of the sled at 5.0 .

http://session.masteringphysics.com/problemAsset/1038700/8/YF-06-31.jpg

Explanation / Answer

F*5 =1/2 *mv^2 above equation may help you. couldnt solve more due to lack of figure..

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