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  • 15-09-2022
  • Physics
contestada

A runner is jogging in a straight line at a
steady vr= 6.4 km/hr. When the runner is
L= 4.2 km from the finish line, a bird begins
flying straight from the runner to the finish
line at vb= 12.8 km/hr (2 times as fast as
the runner). When the bird reaches the finish
line, it turns around and flies directly back to
the runner.

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