- #1

salami

- 1

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I'm trying to find Velocity of the system after collision

Why is it that if I use conservation of momentum I get a different answer of V than if I used conservation of Kinetic energy.

Momentum

m1*v1=(m1+m2)*v2

K energy

0.5*m1*v1^2=0.5*(m1+m2)*v2^2

You can make up your own numbers...I just don't understand the physics!