Question

Вагон массой 30 т, движущийся со скоростью 0.3 м/с, нагоняет вагон массой 35 т, движущийся со скоростью 0.2 м/с. Какова скорость вагонов после взаимодействия, если удар неупругий?

Answer 1

Вот, как-то так:
.................................

Answer 2

Calculation of the Final Velocity of the Wagons

To calculate the final velocity of the wagons after an inelastic collision, we can use the principle of conservation of momentum. According to this principle, the total momentum before the collision is equal to the total momentum after the collision.

The momentum of an object is calculated by multiplying its mass by its velocity. In this case, we have two wagons with different masses and velocities. Let's denote the mass of the first wagon as m1, the velocity of the first wagon as v1, the mass of the second wagon as m2, and the velocity of the second wagon as v2.

Before the collision, the total momentum is given by:

Total momentum before collision = m1 * v1 + m2 * v2 After the collision, the wagons stick together and move with a common final velocity, which we'll denote as vf. The total momentum after the collision is given by:

**Total momentum after collision = (m1 +