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22 November, 12:52

A backpack has a mass of 8kg. it is lifted and given 54.9 J of gravitational potential energy. How high is it lifted? Acceration due to gravity is g=9.8m/s2

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  1. 22 November, 12:57
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    The height of the bag pack is 0.7 m.

    The gravitational potential energy is given by the formula

    P=mgh

    Now plugging the values in the above equation to calculate the height of the bag pack

    54.9=8*9.81*h

    h=0.7 m

    Therefore the bag pack is lifted to the height of 0.7 m.
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