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three point charges of 3µC, 8µC and -5µC are located at the corners of an equilateral triangle. calculate the net force on the 8µC

  • physics -

    Vectorially add the two forces on the 8 uC corner due to the other corners. The 3 uC corner exerts a push
    F1 = k*3*10^-6*8*10^-6/R^2

    and the -5µC corner exerts a pull
    F2 = k*3*10^-6*5*10^-6/R^2.

    Ypu must specify R, the triangle side length, to get an answer.

    k i the Coulomb constant.

    F1 and F2 are 120 degrees apart. Define a coordinate system to explain directions.

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