Determine the angle of two rigid bodies after a collision

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shadi
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Homework Statement
i have two balls with initial velocity v1,v2 and angle theta1,theta2
how do i determine the new velocity and angle for each one
Relevant Equations
the momentum conservation
p1+p2=p1'+p2'
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on Phys.org
Then this is covered in every first year physics book and many other places. Look it up please. Elastic two-body collision. You can report your work and result if you desire
 
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Agreed. @shadi -- you need to show your best efforts to figure this out before we can offer tutorial help here at the PF. Try applying the Relevant Equation that you listed...
 
The drawing could use some commentary. There is a horizontal line drawn through the center. All of the angles are referenced to that line.

When the two objects touch, is this line supposed to be tangent to both of them?

In the absence of friction, what is the direction of the impulse of momentum that is transferred between the objects at the instant of the collision?
 
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