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27 June, 07:13

The potential energy of a 40 kg cannon ball is 14000 J. How high was the cannon ball to have this much potential energy?

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  1. 27 June, 10:15
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    From the information given, cannon ball weighs 40 kg and has a potential energy of 14000 J.

    We need to find its height.

    We will use the formula P. E = mgh

    Therefore h = P. E / mg

    where P. E is the potential energy,

    m is mass in kg,

    g is acceleration due to gravity (9.8 m/s²)

    h is the height of the object's displacement in meters.

    h = P. E. / mg

    h = 14000 / 40 * 9.8

    h = 14000 / 392

    h = 35.7

    Therefore the canon ball was 35.7 meters high.
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