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21 November, 14:25

How much work is done when a 700 N refrigerator is lifted straight up a distance of 4 meters

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  1. 21 November, 14:49
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    The work done is 2800 Joules

    Explanation:

    When a force causes a body to move, work is being done on the object

    by the force

    Work is the measure of energy transfer when a force moves an object

    through a distance

    → Work = Force * Distance

    → The SI unit for work is the joule (J)

    A refrigerator of 700 N is lifted straight up a distance of 4 meters

    We need to find the work done

    → The weight of the refrigerator is 700 N

    → The force = 700 Newtons

    → The refrigerator is lifted straight up 4 m

    → The distance = 4 meters

    Substitute these values in the rule below

    → Work = Force * Distance

    → Work = 700 * 4 = 2800 Joules

    The work done is 2800 Joules
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