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Homework Help: Cannot find the formula for tension

  1. Feb 19, 2009 #1
    Figure 5-48 shows four penguins that are being playfully pulled along very slippery (frictionless) ice by a curator. The masses of three penguins and the tension in two of the cords are m1 = 12 kg, m3 = 16 kg, m4 = 23 kg, T2 = 112 N, and T4 = 212 N. Find the penguin mass m2 that is not given.
    Image :- http://edugen.wiley.com/edugen/courses/crs1650/art/qb/qu/c05/fig05_46.gif

    I really cannot find the formula for tension at all and also i don't understand the tension concept at all. So please can somebody help me please.

    Thanks
     
  2. jcsd
  3. Feb 19, 2009 #2

    LowlyPion

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    Homework Helper

    Re: Tension

    Tension is just Force.

    Use F = m*a
     
  4. Feb 19, 2009 #3
    Re: Tension

    Hello everyone,

    I'm having a doubt with my Physics homework. I need somebody's help!!!

    To find the force exerted by the rope on a bucket of water that is raised from a well I have to find the normal force (m*A upward accelaration of the bucket) and that is the one or I should find the force of gravity (m*G) and substracted from the normal force and that is the force exerted by the rope?

    Thankss
     
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