how much work should be done to lift a 5kg brick to the height of 12m

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how much work should be done to lift a 5kg brick to the height of 12m

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Thanh Hà 4 years 2021-08-12T10:32:20+00:00 1 Answers 11 views 0

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  1. Edana
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    2021-08-12T10:33:27+00:00
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    Answer: 588 joules

    Explanation:

    Work is done when force is applied on an object over a distance ( whether vertical or horizontal). It is measured in joules.

    Thus, Workdone = Force X distance

    – Vertical distance to be moved by the brick = 12 metres

    – Mass of box = 5kg

    – Acceleration due to gravity when box was lifted represented by g is a constant with value of 9.8m/s^2

    Now, recall that Force = Mass x acceleration due to gravity

    i.e Force = 5kg x 9.8m/s^2

    Force = 49 Newton

    So, Workdone = Force X Distance

    Workdone = 49 Newton X 12 metres

    Workdone = 588 joules

    Thus, 588 joules of work was done.

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