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9 August, 22:08

A 2.80 kg mass is dropped from a height of 4.50 m. Find its kinetic energy (KE) when it reaches the ground.

Unit = J

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Answers (1)
  1. 9 August, 23:03
    0
    123.61 J

    Explanation:

    PE = KE

    mgh = 1/2 mv2.

    (2.80) (9.81) (4.50) = 123.606J
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