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a sled mass 50 kg is pulled along snow-covered, flat group. the static friction coefficent is 0.30, and the sliding friction coefficient is .10. what force is need to get the sled moving? then, what force is needed to keep the sled moving at a constant velocity?

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    Is the word "group" supposed to be "ground"?

    The force to start it moving is 0.30 M*g.
    The force to keep it moving at constant speed is 0.10 M*g

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