student276427899 student276427899
  • 19-01-2023
  • Physics
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A worker drives a 0.5 kg spike into a rail tie with a 2.5 kg
sledgehammer. The hammer hits the spike with a speed of 65 m/s.
If 1/3 of the hammer's kinetic energy is converted into internal
energy, how much does the total energy increase?

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