Question

Даёт ли какой-либо простой механизм выигрыш в работе, если да, то какой? А. Нет. Б. Рычаг. В. Неподвижный блок. Г. Подвижный блок. Д. Наклонная плоскость.

Answer 1

А.Нет никакой механизм не даёт

Answer 2

Simple Machines and Work

The concept of simple machines provides a basic mechanism for achieving work. One such simple machine is the inclined plane. An inclined plane allows a force to be applied over a longer distance to achieve the same work as a shorter distance without the inclined plane. This is described by the formula F = mg, where F is the force applied, m is the mass being moved, and g is the acceleration due to gravity.

Another simple machine that can be used to achieve work is the lever. A lever is a rigid bar that pivots around a fixed point called the fulcrum. By applying a force to one end of the lever, a load can be moved at the other end. The relationship between the force and distance from the fulcrum is described by the equation F1 × d1 = F2 × d2, where F1 and F2 are the forces applied and d1 and d2 are the distances from the fulcrum.

In addition to the inclined plane and the lever, other simple machines such as pulleys, wheels and axles, wedges, and screws can also be used to achieve work Each of these simple machines provides a different mechanism for applying force to accomplish work.

In summary, simple machines such as the inclined plane and the lever provide basic mechanisms for achieving work by allowing forces to be applied over different distances or in different directions.

Is there anything else you would like to know about simple machines and their applications?