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Really simple physics problem

F

FrogDog

Diamond Member
I'm building a Pong game in Java and I can't seem to remeber my high school physics stuff. Basically what I need to know is the formula to calculate the angle that an object will be travelling on after it collides with a static (before and after collision) object. I've drawn a diagram to help explain it.
 
angle of incidence equals angle of reflection.

but in pong, that's boring. You need to factor in the speed of the paddle and the momentum imparted to it when it goes through the elastic collision. Ooh ooh, calculate the spin imparted to the ball too for some real fun.

But yeah, it bounces at the same angle...

-patchy
 
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