physics

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A string (A) hanging from the ceiling has a 1 kg mass attached to it and hanging below this mass is string (B) with a 2 kg mass attached. Both of the strings are massless.

How do I calculate the tension in Cord B?

  • physics -

    Schematically, it looks like this (turned 90 degrees)

    Ceiling|-->-A-<---1kg--->-B-<----2kg

    The only mass string B is supporting is the 2kg mass. So the tension in string B is
    Tension
    =mg
    =2kg * g
    =2*9.8 N
    =19.6 N.

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