- #1
Millie Baker
- 6
- 0
Homework Statement
A body X moving with a velocity v makes an elastic collision with a stationary body Y of equal mass on a smooth horizontal surface. Which statement gives the velocities of the two bodies after the collision? (multiple choice question)
The Attempt at a Solution
The answer according to the mark scheme is
velocity of X = 0
velocity of Y = v
So I can't understand how this is worked out. But this as far as I got:
MUx+MUy = MVx + MVy
Ux +Uy = Vx +Vy
Ux = Vx + Vy
How do you know that Vx is 0 and Vy is V (or Ux)?