enny556054 enny556054
  • 28-09-2016
  • Mathematics
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what is the velocity of a 500-kilogram elevator that has 4000 joules of energy?

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Аноним Аноним
  • 28-09-2016
E = 1/2 m v^2
v = sqrt(2*E/m)
= sqrt(2*4000/500)
= 4 m/s
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