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Calculate the horizontal work against friction on the ground

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Matthew pulls his little sister Sarah in a sled on an icy surface (assuming no friction), with a force of 60.0 N at an angle of 37.0 degrees above the horizontal. If he pulls her a distance of 12.0 m, what is the work done by Matthew?

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Solution Summary

In this question, we want to find the horizontal work against friction on the ground. It is important to convert the total force to the horizontal portion which is used to pull the object.

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