Question

The figure shows an arrangement in which four disks are suspended by cords. The longer, top cord loops over a frictionless pulley and pulls with a force of magnitude 80.1 N on the wall to which it is attached. The tensions in the shorter cords are T1 = 57.5 N, T2 = 30.1 N, and T3 = 5.28 N. What are the masses of (a) disk A, (b) disk B, (c) disk C, and (d) disk D?

Answer 1

and Di FBD of A, B, C pao. In 0 30: & T3 =5.20N TT1=57.5N I dmBg Imag 6 mcg Soon 57.5N - 30 INI force balanance on each disc. T=5.20= mog mo= 0.54kg 57.5 -30.1 = mBg 30.1= 5.20 + (mc x 9.8) MB=2.soky mc= 2.53kg so 1=57.5+ mag IMA-203 1kg Ang