Question

Брусок тягнуть рівномірно вздовж поверхні стола за прив’язану горизонтально нитку. Які сили діють на брусок? Сила тяжіння Сила натягу нитки Сила реакції опори Сила тертя Вага тіла

Answer 1

Ответ:

На брусок діють сила тяжіння, сила реакції опори та сила тертя. зовнішня сила врівноважується з силою тертя, що виникає при русі

Answer 2

Ответ:

На брусок діють сила тяжіння, сила реакції опори та сила тертя

Объяснение:

Answer 3

Forces Acting on the Block

When a block is pulled uniformly along the surface of a table by a horizontally tied thread, several forces come into play. These forces include:

1. Force of Tension (Сила тяжіння): This force is exerted by the thread and acts along the direction of the thread. It is the force that the thread applies to the block to pull it.

2. Force of Tension in the Thread (Сила натягу нитки): This force is the same as the force of tension and represents the force applied by the thread to the block.

3. Normal Reaction Force (Сила реакції опори): This force is exerted by the table surface perpendicular to the surface and acts in the upward direction. It balances the weight of the block and is responsible for preventing the block from sinking into the table.

4. Frictional Force (Сила тертя): This force opposes the motion of the block and acts parallel to the table's surface in the direction opposite to the motion of the block. It is caused by the interaction between the surfaces of the block and the table.

5. Weight of the Block (Вага тіла): This force is the gravitational force acting on the block and acts vertically downward.

These forces collectively determine the motion and equilibrium of the block as it is pulled along the table surface by the thread.