izzotann izzotann
  • 29-10-2021
  • Chemistry
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The dog has a mass of 20 kg. The girl has a mass of 60 kg. Suppose both the dog and the girl run away from home at a velocity of 2 m/s. What is the kinetic energy of the dog?

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softmocha14
softmocha14 softmocha14
  • 29-10-2021
dog: ½ x 20kg x (2m/s)² = 10 x 4= 40J
girl: ½ x 60kg x (2m/s)² = 30 x 4 = 120J
She has greater MASS!
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