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17 March, 02:51

An eagle has a mass of 8 kg and is flying 85 m above the ground with a speed of 20 m/s. what is the total mechanical energy of the eagle?

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  1. 17 March, 05:04
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    Total Mechanical Energy = KE + PE

    KE = (1/2) mv²

    = (1/2) * 8*20² = 1600 J

    PE = mgh g ≈ 10 m/s²

    = 8 * 10 * 85 = 6800J

    Total Mechanical = 1600 + 6800 = 8400 J.
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