Determine the angle of two rigid bodies after a collision

Click For Summary

Homework Help Overview

The discussion revolves around determining the angle of two rigid bodies after an elastic collision. Participants are exploring the principles of elastic collisions as covered in introductory physics contexts.

Discussion Character

  • Exploratory, Assumption checking, Conceptual clarification

Approaches and Questions Raised

  • Participants discuss the need for additional information regarding the collision, such as whether it is elastic. There are inquiries about the drawing provided, specifically regarding the tangential relationship of a horizontal line to the objects and the direction of momentum transfer during the collision.

Discussion Status

Some participants have offered guidance on the need for the original poster to demonstrate their understanding and efforts before receiving further assistance. There is an acknowledgment of the foundational concepts involved in elastic collisions, but no consensus has been reached on the specific problem details.

Contextual Notes

There is mention of a drawing that may lack sufficient explanation, and questions are raised about the assumptions regarding friction and the nature of the impulse during the collision.

shadi
Messages
2
Reaction score
0
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'
242255
 
Physics news on Phys.org
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
 
  • Like
Likes   Reactions: berkeman
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?
 
  • Like
Likes   Reactions: berkeman

Similar threads

Problem in understanding angular momentum of a rigid body
  • · Replies 10 ·
Replies
10
Views
2K
Stability of rigid body rotation about different axes
  • · Replies 5 ·
Replies
5
Views
2K
When are reactive forces enough to support this body?
  • · Replies 14 ·
Replies
14
Views
2K
Question on Moment of Inertia Tensor of a Rotating Rigid Body
  • · Replies 4 ·
Replies
4
Views
2K
What does it mean that a rigid body is in equilibrium?
  • · Replies 3 ·
Replies
3
Views
2K
Where on a rigid body is a resultant force applied?
  • · Replies 11 ·
Replies
11
Views
2K
Calculate the speed and angle of the center of mass before a collision
  • · Replies 3 ·
Replies
3
Views
1K
Two Particles Connected by Massless Rod: Dynamics Analysis
  • · Replies 5 ·
Replies
5
Views
2K
Conservation of Linear Momentum of Rigid Body
  • · Replies 3 ·
Replies
3
Views
2K
Coefficient of Restitution for a Hypothetical Collision where masses are not equal after the collision compared to before the collision
  • · Replies 6 ·
Replies
6
Views
1K