physics

A bird has a mass of 0.2 kg and is flying 10 m above the ground with a speed of 7 m/s. What is the total mechanical energy of the bird? Acceleration due to gravity is g = 9.8 m/s2.

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  3. 👁 845
asked by Jesus
  1. Total mechanical energy
    = KE + PE
    (assume PE at ground level = 0)

    KE=(1/2)mv²
    PE=mgh
    h=height above ground in m
    v=velocity in m/s

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  2. 14.7

    1. 👍 1
    2. 👎 3
    posted by Jesus
  3. 19.6

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    2. 👎 3
    posted by Jesus
  4. the correct answer is 19.6

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    2. 👎 5
    posted by kelly
  5. It is 24.5

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    2. 👎 0
    posted by Melanie

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