Physics · momentum & collisions · thermodynamics · first law
Problem
The lift from the previous task was re-equipped by connecting the motor shaft to the drum not directly, but through a gear train. The pinion mounted on the motor shaft has n₁ teeth; the gear wheel is rigidly fixed connected to the drum, has n₂ teeth. At what weight of the lifted load is the maximum useful capacity of the lift achieved? Power losses in transmission should be ignored.
∗) The increment of the total internal energy of bodies when they rub against each other or in inelastic collisions is usually equal to the amount of heat released.