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-   -   Unfamilar which equations to use for this problem and how to solve it? (https://www.askmehelpdesk.com/showthread.php?t=628582)

  • Jan 17, 2012, 07:18 PM
    js261994
    Unfamilar which equations to use for this problem and how to solve it?
    A 10 N force acts South and a 70 N force acts due East on a 15 kg object.

    Add these two forces graphically and show the resultant force

    What is the magnitude of the resultant force?

    Calculate the magnitude of the acceleration
  • Jan 19, 2012, 10:25 AM
    Aurora2000
    You need to translate "South" and "East" into directions.

    Draw a quadrant (up=north, right=east, left=west, down=south) and impose a coordinate system, with positive x axis corresponding to east and positive y axis to north. Under these coordinates you have that
    the resultant is a force with x component 70N and y component -10N.

    The magnitude is , and for the acceleration use .

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