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23 July, 02:59

A billboard that stands 30 m above the ground has a gravitational potential energy of 175000 j. What is its mass

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  1. 23 July, 05:05
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    Potential energy (PEI due to gravity = mgh

    Where, m = mass of the billboard, g=gravitational acceleration (9.81 m/s^2), h = height

    Therefore,

    m = PE / (gh) = 175000 / (9.81*30) = 594.63 kg
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