Posted by Daniel on Saturday, November 19, 2011 at 11:31pm.
Its another momentum problem similar to your other post. Since there is only two 'fragments' from the 'explosion' :P you can disregard the angle for the velocity and act like they are horizantal to each other. If you dont want to disregard the angle, then you may use component method and find the two component momentums then use pythagorean theorom.
Easier way is to just impose theyre horizantal, therefore:
m1v1=-m2v2 (since they are going in different directions, the momentums will be the negative of each other).
You have two velocities and a amss, sub for the final mass.
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