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Forces of 67.2lb and 57.3lb are exerted at an angle of 47 degrees. What is their resultant?

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- Thread starter coolone_888
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- #1

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Forces of 67.2lb and 57.3lb are exerted at an angle of 47 degrees. What is their resultant?

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Andrew Mason

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Show us what you have done first. How do you add these forces?Forces of 67.2lb and 57.3lb are exerted at an angle of 47 degrees. What is their resultant?

AM

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well i know you use c2=a2+b2-2ab cos C. but then im not sure what to do next.

- #4

Andrew Mason

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Draw a vector diagram. Place one vector along the x axis. The other 47 degrees from the axis with its tail on the head of the first. Draw the resultant. What is the component of the second vector in the y direction? What is its component in the x direction? Add the x components to get the x component of the resultant. What is the y component of the resultant?well i know you use c2=a2+b2-2ab cos C. but then im not sure what to do next.

AM

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