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15 September, 11:48

How much force is needed to move a brick with a mass of 345-kg a distance of 28m while doing 1008 j of work?

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  1. 15 September, 12:40
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    Work = (force) x (distance)

    1,008 J = (force) x (28 m)

    Divide each side by 28m : (1,008 kg-m²/sec²) / (28 m) = force

    Force = 36 kg-m/s² = 36 Newtons.

    (about 8.1 pounds)

    It doesn't matter what that force accomplishes.

    It could be moving a brick, lifting a fish, or pushing a little red wagon.

    In order to do 1,008 joules of work in 28 meters, it takes 36 N of force,

    in the direction of the 28 meters.
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