PHYSICS. HELP!

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I've been stuck on this physics homework since I got home. I think the main issue I don't get is finding the components, and adding them to find the resultant force or velocity. Here's one problem.

Three forces act on a point concurrently. Force a is 80N at 220 degrees, force b is 70N at 90 degrees, and force c is 70N at 0 degrees. Find the resultant force and equilibrant force.

Please help in anyway, I really do not understand any of this.

  • PHYSICS. HELP! -

    x components:
    80 cos 220 = -61.3
    70 cos 90 = 0
    70 cos 0 = 70
    total x = 8.72
    y components
    80 sin 220 = -51.4
    70 sin 90 = 70
    70 sin 0 = 0
    total y = 18.6
    so magnitude resultant = sqrt (18.6^2 +8.72^2) = 20.2 Newtons
    direction
    cos angle = 8.72/20.2
    angle = 64.4 degrees

    The equilibrant is equal in magnitude and at 64.4+180 = 244.4 degrees

  • PHYSICS. HELP! -

    Equilibrant =0

  • PHYSICS. HELP! -

    quation of physics

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