Need physics help with Drag Force

Dec 1st, 2015
Anonymous
Category:
Engineering
Price: $5 USD

Question description

A child sits in a sled on a horizontal snowy surface. The combined mass of the child and the sled is 20 kg. The kinetic coefficient of friction is 0.39.  Initially the child and her sled are at rest.  After you pull the sled 9 m the velocity of the sled is 1.5 m/s. How much total mechanical work (J) did you do as you pulled the sled and child 9 m?

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