Determine the angle of two rigid bodies after a collision

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SUMMARY

The discussion focuses on determining the angle of two rigid bodies after an elastic collision. Participants emphasize the importance of understanding the principles of elastic two-body collisions, as outlined in first-year physics textbooks. The relevance of applying the appropriate equations and providing clear diagrams is highlighted, particularly regarding the tangent line at the point of contact and the direction of momentum transfer during the collision.

PREREQUISITES
  • Understanding of elastic collisions in physics
  • Familiarity with momentum transfer concepts
  • Ability to interpret and create diagrams for collision scenarios
  • Knowledge of relevant equations for two-body collisions
NEXT STEPS
  • Study the principles of elastic two-body collisions in detail
  • Learn how to apply the conservation of momentum and energy equations
  • Explore the effects of friction on collision outcomes
  • Practice drawing and analyzing collision diagrams with tangent lines
USEFUL FOR

Physics students, educators, and anyone interested in understanding the dynamics of collisions in mechanics.

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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yes it is elastic
 
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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