Collision between alpha particle and helium atom

AI Thread Summary
The discussion centers on the collision between an alpha particle and a helium atom, specifically addressing why their tracks form a 90-degree angle post-collision. This phenomenon can be explained through the principles of conservation of momentum and energy in elastic collisions, particularly in two dimensions. When two bodies of equal mass collide, with one at rest, they can scatter at right angles due to the symmetrical nature of the collision dynamics. The conversation also emphasizes the importance of visualizing the collision in a 2D plane to understand the resulting trajectories. Overall, the 90-degree angle in their tracks is a direct result of these fundamental physical laws.
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Why their tracks after collision has an angle 90 degree?
Any detail derive?
 
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rogerkitkit said:
Why their tracks after collision has an angle 90 degree?
Any detail derive?

What have you tried and where did you get stuck?
 
rogerkitkit said:
Why their tracks after collision has an angle 90 degree?
Any detail derive?
Try solving 2D collision of bodies of equal mass, where one of them is initially at rest.
 

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