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22 August, 22:32

Find the work done by a force of 20 lbs acting in the direction north 50 degrees west in moving an object 4 feet due west?

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  1. 23 August, 01:13
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    Answer: Workdone = 61.28ft. lbs

    Workdone in moving the object 4ft due west is 61.28ft. lbs

    Explanation:

    Given;

    Force = 20lbs

    Direction = N 50° W

    Distance moved = 4ft

    Workdone = Force * distance

    W = fd

    But f in this case is

    Force due North = fcos50

    Force due west = fsin50

    Since we are to find the workdone due west then

    W = fsin50 * d = fdsin50

    W = 20lbs * 4ft * sin50

    Workdone = 61.28ft. lbs
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