Question

Чому дорівнює сила реакції опори,що діє на тіло масою 2 кг?срочно пжпжпж

Answer 1

Ответ:

Сила реакції опори дорівнює 19,6 H.

Объяснение:

Дано:

m = 2 кг

Знайти: N

Розв'язок:
N = F(тяж) = mg, де g = 9,8 Н/кг

N = 2 кг * 9,8 Н/кг = 19,6 Н

Відповідь: N = 19,6 H.

Answer 2

Calculating the Reaction Force on a 2kg Mass

The reaction force on a body can be calculated using Newton's second law of motion, which states that the force acting on an object is equal to the mass of the object multiplied by its acceleration. In this case, we can calculate the reaction force acting on a 2kg mass.

Step 1: Calculate the Weight of the Object

The weight of an object can be calculated using the formula: weight = mass × acceleration due to gravity. The acceleration due to gravity is approximately 9.81 m/s^2 on the surface of the Earth.

So, the weight of a 2kg mass can be calculated as: ``` weight = mass × acceleration due to gravity = 2 kg × 9.81 m/s^2 ≈ 19.62 N ```

Step 2: Determining the Reaction Force

The reaction force on the 2kg mass will be equal in magnitude and opposite in direction to its weight due to the force of gravity. Therefore, the reaction force will also be approximately 19.62 N, acting in the opposite direction to the force of gravity.

So, the force of reaction on the 2kg mass is approximately 19.62 Newtons.

This calculation assumes that the mass is at rest or moving with a constant velocity. If the mass is accelerating, additional forces would need to be considered.

I hope this helps! If you have further questions, feel free to ask.