physics

During the Olympic ice competition, Boris (m = 75 kg) glides at 1.8 m/s to a stationary Juliette (52 kg) and hangs on. How far will the pair slide after the collision if the coefficient of kinetic friction between the ice and their skates is .042?

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asked by grey
  1. get V from momentum

    (75 + 52) V = 75 (1.8)

    calculate V

    calculate (1/2) m V^2

    friction force = .042 * m * g

    friction force * distance = (1/2) m V^2
    or actually m cancels
    .042 g d = .5 V^2

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    posted by Damon

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