Alex J.

asked • 10d

Energy and momentum question

A frictionless disc of mass 0.50 kg is moving in a straight line across an air table at a speed of 2.4 m/s when it bumps into an elastic band stretched between two fixed posts. If the elastic band exerts an average opposing force of 1.4 N on the disc for 1.5 s, what will be the final velocity of the disc?

1 Expert Answer


Stanton D. answered • 10d

4.6 (42)

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