cq_1_191

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Phy 201

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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?

M = [sqrt] 2^2 + 3^2

M = [sqrt] 4+9

M = + - 3.6

= 3.6

Angle:

Arctan(3/2) = arctan(1.5) = 56.3°

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• What are the components of the equilibrant force?

X = -2 N

Y = -3 N

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

Arctan (-3/-2) = Arctan (1.5) = 56.3°

the equilibrant isn't at the same angle

note that the x component is negative, which requires that you add 180 deg to the arctan

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35 minutes

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10/22 5 pm

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