-1 9 5 points An engine does 1421000 J of work to lift a beam 145 meters. How much force was exerted to lift the beam.

Question

-1
9
5 points
An engine does 1421000 J of work to lift a beam 145 meters. How much force was exerted to lift the beam.
1566N
9800N
20445 N
50000N

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niczorrrr 4 years 2021-08-01T15:31:52+00:00 1 Answers 14 views 0

Answers ( )

  1. lethu
    0
    2021-08-01T15:33:43+00:00
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    Answer:

    9800 N

    Explanation:

    applying,

    W = Fd……………… Equation 1

    Where W = work done by the engine, F = Force exterted to lift the beam, d = distance.

    make F the subject of the equation

    F = W/d…………… Equation 2

    From the question,

    Given: W = 1421000 J, d = 145 meters.

    Substitute these values into equation 2

    F = 1421000/145

    F = 9800 N

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