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Collision-Physics-Pucks.?
a collision between two pucks on an air-hockey table. Puck A has a mass of 0.039 kg and is moving along the x axis with a velocity of +5.5 m/s. It makes a collision with puck B, which has a mass of 0.079 kg and is initially at rest. After the collision, the two pucks fly apart with the angles 65 degree's for A and 37 for B.
Find the final speed of puck A and puck B.
OK, so I found lots of problems like this on yahoo answers, but I don't understand the equations everyone is using, or how to apply it to my problem.
Please, help and show work so I understand!
Establish the conservation of momentum equations for the components x and y. Here they are
ma vaox = ma vafx + mb vbfx
0 = ma vafy + mb vbfy
where vaox is the initial velocity of puck a in the x direction, vafx is the final velocity of puck a in the x direction, and so on. Now, by trigonometry, you have
vafx = Vaf cos(65)
vafy = Vaf sin(65)
vbfx = Vbf cos(37)
vbfy = Vbf sin(37)
All the above equations are all you need to solve this problem.
Air Hockey Game Table