A 3 kg object at 8 m/s hits a 1 kg object at rest and they stick together. The kinetic energy lost is:

  1. 24 J
  2. 96 J
  3. 12 J
  4. 48 J
Answer

A) 24 J

v = 6 m/s. KE before = 96 J, after = 72 J, so 24 J is converted to heat, sound and deformation. SLO P-11-B-13 · Application

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