The mass of the blue puck in the figure is 20.0% greater than the mass of the green one. Before colliding the, the pucks approach each other with momenta of equal magnitudes and opposite directions, and the green puck has an initial speed of 10.0 m/s. Find the speeds of the pucks after the collision if half the kinetic energy is lost.(adsbygoogle = window.adsbygoogle || []).push({});

Angles A and B are 30 degrees.Code (Text):

[COLOR=Green]

/

/

/ A

O-->--- [/COLOR][COLOR=Blue]---<--O

B /

/

/

[/COLOR]

I calculated the initial velocity of the blue puck to be 25/3 m/s. I've tried setting the initial Kinetic energy in the x and y directions equal to two times the final Kinetic energy in the x and y directions and solving the system of equations, but it doesn't work out.

Could someone please tell me how I should set this up so I can solve it?

Thanks.

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# Homework Help: Two-Dimensional Collisions

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