80. The unit is mounted on top of the two inclined planes constituting the horizon angles α = 30 ° and β = 45 °. The weights of equal mass (m1 = m2 = 2 kg) are connected to the thread, thrown through the block. Considering the thread block and weightless, bearing friction coefficients of weights of equal ramps f1 = f2 = f = 0,1 and neglecting the friction in the block to determine: 1) the acceleration with which the moving weights; 2) force the thread tension.

Detailed solution. Decorated in Microsoft Word 2003. (Target decided to use formula editor)