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A 58 kg boy and a 38 kg girl use an elastic rope
while engaged in a tug-of-war on a frictionless
icy surface.
If the acceleration of the girl toward the
boy is 3.1 m/s
, determine the magnitude of
the acceleration of the boy toward the girl.
Answer in units of m/s

  • physics -

    The forces will be equal( but opposite).
    Force equals mass times acceleration.

    Let m = 38kg (the girl's mass)
    Let a = 3.1m/s^2 (the girl's acceleration)
    Let n = 58kg (the boy's mass)
    Find b (the boy's acceleration).
    Such that: m*a = -n*b

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