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applications of vectors

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Two people are carrying a box. One person exerts a force of 150 pounds at an angle of 62.4 degrees with the horizontal. The other person exerts a force of 114 pounds at an angle of 54.9 degrees. Find the weight of the box.

  • applications of vectors - ,

    first vector = (150cos62.4, 150sin62.4)
    2nd vector = (114cos54.9 , 114sin 54.9)

    resultant = first vector + 2nd vector
    = (135.045 , 226.1996)

    magnitude = weight = √(135.045^2 + 226.1996^2)
    = appr 263.4

  • applications of vectors - ,

    suppose you would like to cross a 132-foot-wide river in a motorboat

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