Pspencer78471 Pspencer78471
  • 19-12-2022
  • Physics
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a 71.1 kg runner has a speed of 3.50 m/s at one instant during a long-distance event. hint (a) what is the runner's kinetic energy at this instant (in j)? j (b) how much net work (in j) is required to triple his speed?

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