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genier113
genier113 genier113
  • 06-01-2016
  • Physics
Answered

What is the mechanical energy of a 500kg rollercoaster car moving with a speed of 3m/s at the top hill that is 30m high

Verified Answer :

marthabecerra0
marthabecerra0 marthabecerra0
  • 19-09-2018

K.E = 1/2mv^2 = 1/2(500)(3)^2 = 2250 J

mgh = 500(9.8)(30) = 147000 J

2250 + 147000 = 149250

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