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Homework Help: Forces physics question

  1. Dec 10, 2007 #1
    2 .
    (53 and 27 are angles)
    \ 53.............37/
    T1 \.........../ T2

    T1 = .15 m
    T2 = .2 m

    Determine the magnitude of each of the forces.

    For this, i did 5/cos37 and 5/cos53, and i got T1= 6.26N and T2=8.31N, but im not sure if this is correct.

    A ball weight 5 newtons is suspended by two strings as shown. Suppose the ball swings as a pendulum perpendicular to the plane of the page, achieving a maximum speed of 0.6 meters per second during its motion. Determine the magnitude and direction of the net force on the ball as it swings through the lowest point in its path.

    For this, i think you do sin(37)(.2)=.12 and sin(53)(.15)=.12 so then you have (.51)(.6^2)/(.12)=a
    and then do F=ma=mv^2/r and i get F=1.53N
    but i also dont know if this is right.
  2. jcsd
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