speed

Discussion in 'Physics' started by braddy, Sep 10, 2005.

  1. braddy

    Thread Starter Well-Known Member

    Dec 29, 2004
    83
    0
    Hey,
    I need some suggestions to approach the problem:

    A lifeguard standing on a tower throws a buoy to a swinner 5m from the tower. The lifeguard, positioned 3 m above the water, pulls in the rope at a speed of 1m/s.
    How fast is the swinner coming to the shore when he is at 4m from the water edge?

    thanks
     
  2. wireless

    New Member

    Sep 10, 2005
    3
    0

    First, draw a diagram. It should be a triangle with 3m on one side (the height of the life guard), 4m on another side (distance the swimmner is from the edge) and
    with a little geometry the hypotenuse is 5m. These lengths will give you the angles of the triangle. From here, all you need to find is the COSINE of the angle.
     
  3. Brandon

    Senior Member

    Dec 14, 2004
    306
    0
    Since it never said the swimmer grabbed the bouy, you could say 0.
     
  4. GnatWest

    New Member

    Apr 24, 2004
    4
    0
    there seems to be some missing info on this question based on your other posts
     
Loading...