Question

!!!!!!!!!!!!!!!!!!CРОЧНО!!!!!!!!!!!!!!!!!!!Два пластилиновых шарика с массами m и 2m двигаются по гладкой поверхности во взаимно перпендикулярных направлениях со скоростями 3мс и 2мс соответственно. Определите скорость шариков после их абсолютно неупругого соударения. Шарики считать материальными точками.

Answer 1

Ответ:

Лови дружище!

Объяснение: а ты случайно не с фоксфорда? Если да, не поможешь с химией? Если ты ее сделал… у тебя же тогда открылись ответы? Мне нужна химия: номер 14,15,18? Поможешь если с фоксфорда?

Answer 2

Problem Analysis

We are given two clay balls with masses m and 2m, moving on a smooth surface in mutually perpendicular directions. The first ball has a velocity of 3 m/s, while the second ball has a velocity of 2 m/s. We need to determine the velocity of the balls after their perfectly inelastic collision.

Solution

In an elastic collision, both momentum and kinetic energy are conserved. In a perfectly inelastic collision, only momentum is conserved.

Let's denote the velocity of the first ball after the collision as v1' and the velocity of the second ball after the collision as v2'. According to the law of conservation of momentum, the total momentum before the collision is equal to the total momentum after the collision:

(m * 3) + (2m * 2) = (m + 2m) * (v1' + v2')

Simplifying the equation:

3m + 4m = 3m * v1' + 2m * v2' 7m = 3m * v1' + 2m * v2'

Since the balls stick together after the collision, their final velocities are the same. Therefore, v1' = v2'.

Substituting v1' = v2' into the equation:

7m = 3m * v1' + 2m * v1' 7m = 5m * v1' v1' = 7m / 5m v1' = 7/5 m/s

Therefore, the velocity of both balls after the perfectly inelastic collision is 7/5 m/s.

Answer

The velocity of both clay balls after the perfectly inelastic collision is 7/5 m/s.