Question

З похилої площини з прискоренням зїжджає брусок. Установіть відповідність між виразами за якими можна розрахувати числове значення векторів та назвами цих векторів або проекцій цих векторів.Маса бруска m, коефіціент тертя між бруском та похилою площиною u 1mgsina 2umgcosa 3g(sina-ucosa) 4mgcosa А Сила нормальної рекції опори б Вага тіла В Сила тертя Г Проекція сили тяжіння на вісь ОХ Д Прискорення тіла

Answer 1

Ответ:

Объяснение:..........

Answer 2

Matching Expressions for Calculating Vector Values and Names/Projections

To match the expressions for calculating the numerical value of vectors with their names or projections, we can use the following correspondences:

1. mgsinα - *Projection of the force of gravity on the inclined plane* 2. umgcosα - *Force of friction* 3. g(sina-ucosa) - *Net force parallel to the inclined plane* 4. mgcosα - *Weight of the body* 5. b - *Normal reaction force* 6. G - *Force of friction* 7. mgsina - *Projection of the force of gravity on the X-axis* 8. a - *Acceleration of the body*

Calculating Numerical Values of Vectors and Projections

The expressions provided can be used to calculate the numerical values of the vectors and projections as follows:

- The force of gravity acting on the inclined plane can be calculated using the expression mgsinα. - The force of friction can be calculated using the expression umgcosα. - The net force parallel to the inclined plane can be calculated using the expression g(sina-ucosa). - The weight of the body can be calculated using the expression mgcosα. - The normal reaction force can be calculated using the expression b. - The force of friction can be calculated using the expression G. - The projection of the force of gravity on the X-axis can be calculated using the expression mgsina. - The acceleration of the body can be calculated using the expression a.

These calculations are essential for understanding the dynamics of the motion of the block on the inclined plane and for solving related problems in physics.

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