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physics

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A sled of mass m is given a kick on a frozen pond. The kick imparts to it an initial speed of 2.80 m/s. The coefficient of kinetic friction between sled and ice is 0.150. Use energy considerations to find the distance the sled moves before it stops.


______________m

  • physics - ,

    The friction force F times the sliding distance X is the work done agaqinst friction. It equals the initial kinetic energy of the sled. The mass m will cancel out.

    m*g*0.150*X = (1/2)*m*Vo^2

    X = Vo^2/(0.3 g)= ___ m

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