Задача id9478

A dynamometer is placed in the elevator car, from which a load of mass m is suspended. What are the dynamometer readings in the following cases: 1) the elevator is at rest; 2) the elevator rises with acceleration a1 directed upward; 3) the elevator descends with acceleration a2 directed downward (a2 < g); 4) does the elevator fall freely?

Detailed solution. Format png