Question

1-

An atom of mass ? moving in the direction + ? with speed ? undergoes an elastic collision with an atom of mass 3? at rest. After the collision the first atom moves in the + ? direction. Find the velocities of both atoms (in terms of ?) after the collision.
to. Solve the problem from the frame of reference described in the problem (this is the “laboratory” frame). Draw diagrams representing the situation before and after the collision in this frame of reference.

b. Calculate the velocity of the center of mass and use Galilean transformations to transform the problem to one where the origin of the reference frame is the center of mass, this is the “COM” frame. In other words, it must transform all the speeds before and after the collision to the COM frame and verify that the momentum is conserved in this frame. Draw diagrams representing the situation before and after the collision in this frame of reference.

Answer 1