Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.

How do i solve for tension on T1 and T2? ?

Also...how do I set up the formulas correctly to solve this? 

Attachment image

3 Answers

Relevance
  • ?
    Lv 7
    2 years ago
    Favorite Answer

    Resolve the forces into x and y components and balance, assuming nothing is moving

    T1 cos(41°) = T2 cos(63°)

    T3 = T1 sin(41°) + T2 sin(63°)

    T3 = w = 200N

    2 equations and 2 unknowns...

    T1 = T2 cos(63°) / cos(41°)

    200 = [T2 cos(63°) / cos(41°)] sin(41°) + T2 sin(63°)

    200 = T2 [cos(63°) sin(41°)/ cos(41°) + sin(63°)]

    T2 = 156 N ✔

    T1 = 156 (cos(63°) / cos(41°))

    T1 = 93.8 N ✔

  • Pope
    Lv 7
    2 years ago

    Is that weight force 200 N. I cannot read it clearly. I am going to go with 200 N. Separate the three tension forces into their horizontal and vertical components.

    T₁ = -|T₁|cos(41°)i + |T₁|sin(41°)j

    T₂ = |T₂|cos(63°)i + |T₂|sin(63°)j

    T₃ = (-200 N)j

    T₁ + T₂ + T₃ = 0

    When you add the component parts it comes to this system with unknowns |T₁| and |T₂|:

    -|T₁|cos(41°) + |T₂|cos(63°)

    |T₁|sin(41°) + |T₂|sin(63°) - 200 N = 0

  • Anonymous
    2 years ago

    Since the light isn't moving, the sum of the forces acting upward must equal the sum of the forces acting downward.

    T1 * sin angle + T2 * sin angle = W

    also, since the light isn't moving side to side, the sum of the horizontal forces equal to zero

    T1 * cos angle = T2 * cos angle

    2 equations, 2 unknowns. the math is up to you.

Still have questions? Get your answers by asking now.