phy

posted by nimish

A weightless string is suspend on a frictionless pulley, a mass of 6 kg. is
suspend at one end and mass of 10 kg. is suspended on the other end of the
string, the tension in the string will be :

  1. Damon

    a up on 6 kg mass, so down on 10 kg mass

    6 kg mass
    T - 6 g = 6 a

    10 kg mass
    10 g - T = 10 a

    add
    4 g = 16 a
    a = g/4

    then go back
    T - 6 g = 6 g/4
    T = 7.5 g = 7.5(9.81)

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