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  1. ttpp1124

    Vector Labelling

    BC and FE
  2. ttpp1124

    Vector Labelling

    It has to be in the same direction. I will use EB
  3. ttpp1124

    Solving for Tension: A chandelier is suspended by two chains

    Well, the question is asking for the tension in the 5m rope. So, T=(45)(9.8). That would work for both the 5m and 8m rope. How do I change it such that the equation applies to the 5m rope?
  4. ttpp1124

    Solving for Tension: A chandelier is suspended by two chains

    An object with an acceleration of 0 has no net force on it but there may be forces acting on it that cancel out. Is T = mg my formula then?
  5. ttpp1124

    Solving for Tension: A chandelier is suspended by two chains

    No. I should substitute acceleration with 0, correct?
  6. ttpp1124

    Solving for Tension: A chandelier is suspended by two chains

    I've begun by drawing out the diagram. Since they want the tension in the 5m rope, I've broken it down into two vectors. I want to use T = mg + ma, but I don't think that's right because I don't have acceleration. Is there another formula I can use instead? Thanks!
  7. ttpp1124

    Vectors Question using Calculus -- Swimmer crossing a River

    H He's swimming to the oppiste side. Relative meaning in the direction of. I drew another diagram, I'm not sure if I'm on the right track..
  8. ttpp1124

    Vectors Question using Calculus -- Swimmer crossing a River

    A lot of my problems have right-angled triangles with them.. Is it not supposed to be a right angle?
  9. ttpp1124

    Vector Labelling

    So then collinear to AD would either be BE or EB
  10. ttpp1124

    Vector Labelling

    So then the magnitude of BD is AE. What could possible be the collinear vector to AD??
  11. ttpp1124

    Vectors Question using Calculus -- Swimmer crossing a River

    Since he can't swim directly across, he would have to swim in two different directions.
  12. ttpp1124

    Vector Labelling

  13. ttpp1124

    Vectors Question using Calculus -- Swimmer crossing a River

    If I'm drawing a triangle, the hypotenuse would be B/W, right? I think that the adjacent side would be Bob and the opposite side would be the water.
  14. ttpp1124

    Vectors Question using Calculus -- Swimmer crossing a River

    Yes. He can't be going north and the question doesn't say anything about him moving against the current.
  15. ttpp1124

    Vectors Question using Calculus -- Swimmer crossing a River

    From what I acknowledge, he's moving perpendicular to the current. Is he going North?
  16. ttpp1124

    Vectors Question using Calculus -- Swimmer crossing a River

    He's swimming straight ahead. He's moving in a straight line, so you're right we wouldn't use that. Would I move on directly to an equation that solves for speed?
  17. ttpp1124

    Vectors Question using Calculus -- Swimmer crossing a River

    I'm not sure if this is right.. if it is, I am thinking of a way to calculate the direction.
  18. ttpp1124

    Vectors Question using Calculus -- Swimmer crossing a River

    Will I be using Pythagorean's formula?
  19. ttpp1124

    Vectors Question - Calculus

    listen buddy you either help me get started or leave
  20. ttpp1124

    Vectors Question - Calculus

    Well, see, I'm not so sure how to start. I'm assuming I'd multiply mass with gravity...? I don't know how to incorporate the lengths.
  21. ttpp1124

    Vectors Question - Calculus

    A 45 kg chandelier is suspended by two chains of lengths 5 m and 8 m attached to two points in the ceiling 11 m apart. Find the tension in the 5 m rope.
  22. ttpp1124

    Vectors Question using Calculus -- Swimmer crossing a River

    Hi! I have a physics question I need help with. Bob can swim at 4 m/s in still water. He wishes to swim across a river 200 m wide to a point directly opposite from where he is standing. The river flows westward at 2.5 m/s and he is standing on the South bank of the river. a. What is the speed...
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