Question

Решите задачу пж срочно З гармати стріляють у горизонтальному напрямі. Визначити імпульс снаряда, якщо його маса становить 65кг, а швидкість у момент вильоту 600м/с. Яку швидкість матиме при віддачі гармата, якщо її маса 1т.

Answer 1

Ответ:

Объяснение:

надеюсь помогло)

Answer 2

Problem Analysis

We are given the mass of a projectile and its velocity at the moment of firing. We need to calculate the momentum of the projectile. Additionally, we are given the mass of a cannon and we need to determine the velocity it will have when it recoils.

Calculation of Projectile Momentum

The momentum of an object is calculated by multiplying its mass by its velocity. In this case, we have a projectile with a mass of 65 kg and a velocity of 600 m/s at the moment of firing. Therefore, we can calculate the momentum of the projectile using the formula:

Momentum = Mass × Velocity

Substituting the given values, we get:

Momentum = 65 kg × 600 m/s

To find the momentum of the projectile, we can calculate this expression.

Calculation of Cannon Recoil Velocity

To determine the velocity of the cannon when it recoils, we can use the principle of conservation of momentum. According to this principle, the total momentum before the firing is equal to the total momentum after the firing. The total momentum before the firing is zero because the cannon is initially at rest. Therefore, the total momentum after the firing will be zero as well.

Let's assume the velocity of the cannon when it recoils is V. The mass of the cannon is given as 1 ton, which is equal to 1000 kg. The momentum of the cannon can be calculated using the formula:

Momentum = Mass × Velocity

Substituting the given values, we get:

0 = 1000 kg × V

To find the velocity of the cannon when it recoils, we can solve this equation for V.

Calculation

Let's calculate the momentum of the projectile and the velocity of the cannon when it recoils.

1. Calculation of Projectile Momentum: - Mass of the projectile: 65 kg - Velocity of the projectile: 600 m/s - Momentum of the projectile = Mass × Velocity = 65 kg × 600 m/s

2. Calculation of Cannon Recoil Velocity: - Mass of the cannon: 1000 kg (1 ton) - Momentum of the cannon = 0 (according to the principle of conservation of momentum) - Momentum of the cannon = Mass × Velocity = 1000 kg × V

Using the above calculations, we can find the values of the projectile momentum and the cannon recoil velocity.

Answer

1. The momentum of the projectile is 39,000 kg·m/s. 2. The velocity of the cannon when it recoils is 0 m/s.

Please let me know if you need any further assistance!