cq_1_191

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Phy 121

Your 'cq_1_19.1' report has been received. Scroll down through the document to see any comments I might have inserted, and my final comment at the end.

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The equilibrant of a force is the force which is equal and opposite to that force. If two forces are equal and opposite, their x and y components are also equal, but the x and y components of the force are opposite in sign to those of the equilibrant.

The x and y components of a force are 2 Newtons and 3 Newtons repectively.

• What are the magnitude of this force and what angle does it make as measured counterclockwise from the positive x axis?

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Magnitude = sqrt( (2 N)^2 + (3 N)^2 ) = 3.61 N

Direction = arctan(3 N / 2 N) = 56.31 deg

• What are the components of the equilibrant force?

-2 N, -3 N

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• What angle does the equilibrant force make as measured counterclockwise from the positive x axis?

Direction = arctan(-3 N / -2 N) = 56.31 deg

@& If the x component is negative you need to add 180 degrees.

At 56 degrees both x and y coordinates would be positive, not negative.*@

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10 min

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@& Good, but with one very easily-corrected error so be sure you see my note.*@