March 28, 2017

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Cheetahs can sustain speeds of 25 m/s over short distances. One of their prey is Thomson's gazelle, with top speed about 22 m/s.
If a 52kg cheetah running southward at top speed grabs and holds onto a 23kg gazelle running westward at 22 m/s, find the velocity of these animals just after the attack. Assume that eastward is a positive x-direction and northward is a positive y-direction.

  • physics - ,

    V^2 = X^2 + Y^2 = 22^2 + 25^2 = 1109
    V = 33.3 m/s.

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