82. To determine: 1) the work of raising the load on an inclined plane; 2) average, and 3) the maximum capacity of the lifting device if the load weight 10 kg, length of ramp 2 m, the angle of inclination to the horizontal of 45 °, the coefficient of friction of 0.1 and 2 while lifting.

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