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14 June, 02:55

How fast would a 2-kilogram object need to move to have the same kinetic

energy as a 4-kilogram object moving at 8 meters per second?

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Answers (1)
  1. 14 June, 03:08
    0
    11.3 m/s

    Explanation:

    KE₁ = KE₂

    ½m₁v₁² = ½m₂v₂²

    ½ (2 kg) v² = ½ (4 kg) (8 m/s) ²

    v ≈ 11.3 m/s
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