physics

Data:
theta_1 = 44.9 theta_2 = 146.1
A = 4.8 cm B = 8.7 cm
A)What is the x component of vector A?
B)What is the y component of vector A?
C)What is the x component of vector B?
D)What is the y component of vector B?
E)What is the magnitude of vector (A + B)?

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asked by Sam
  1. I suppose theta 1 goes with A and theta 2 goes with B ?
    I suppose theta is angle counterclockwise from +x axis?

    If so:
    Ax = 4.8 cos 44.9
    Ay = 4.8 sin 44.9
    Bx = 8.7 cos 146.1
    By = 8.7 sin 146.1

    (A+B)x = Ax + Bx
    (A+B)y = Ay + By

    |A+B| =sqrt[ (A+B)x^2 + (A+B)y^2 ]

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    posted by Damon
  2. For part E which x and y do I plug in?

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    posted by Sam
  3. Part E is this:

    |A+B| =sqrt[ (A+B)x^2 + (A+B)y^2 ]

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    posted by Damon
  4. I know but which values do I plug in?

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    posted by Sam

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