Formula Momentum Conservation for the Collision of Two Masses

Velocity of the first body (before)

Unit
Velocity of the first body before the collision with the second body. The first body has the momentum $$p_1 = m_1 \, v_1$$.

Velocity of the second body (before)

Unit
Velocity of the second body before the collision with the first body. The second body has the momentum $$p_2 = m_2 \, v_2$$.

Mass of the first body

Unit
Here it is assumed that the mass of the first body remains the same before and after the collision.

Mass of the second body

Unit
Here it is assumed that the mass of the first body remains the same before and after the collision.

Velocity of the first body (after)

Unit
Velocity of the first body after the collision with the second body.

Velocity of the second body (after)

Unit
Velocity of the second body after the collision with the first body.