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Physics Problem: Collisions in 2D

Gl4di4tor

Senior member
Question:
The drawing shows a collision between 2 pucks on an air hockey table. Puck A has a mass of 0.025 kg and is moving allong the x axis with a velocity of +5.5 m/s. It makes a collision with puck B, which has a mass of 0.050 kg and is initially at rest. The collision is not head-on. After the collision, the 2 pucks fliy apart with the angles shown in the drawing. Find the final speed of (a) puck A and (b) puck B.

Drawing and my incomplete attempt
 
momentum is conserved in the I and J vectors.

v1 final = (m1 - m2)/(m1+m2) * v1 initial

v2 final = (m2-m1)/(m1+m2) * v1 initial
 
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