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22 September, 08:48

A 1900kg airplane is flying at an altitude of 510 above the ground. What is the gravitational potential energy in Joules?

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  1. 22 September, 10:54
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    Answer: 9496200 joules

    Explanation:

    Gravitational potential energy, GPE is the energy possessed by the moving plane since it moves against gravity.

    Thus, GPE = Mass m x Acceleration due to gravity g x Height h

    Since Mass = 1900kg

    g = 9.8m/s^2

    h = 510 metres (units of height is metres)

    Thus, GPE = 1900kg x 9.8m/s^2 x 510m

    GPE = 9496200 joules

    Thus, the gravitational potential energy of the airplane is 9496200 joules
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