- #1
lu22
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Homework Statement
There are 3 blocks, A B and C, arranged left to right. blocks A and C have masses of m and block B has mass of 2m. block A heads toward the other two with velocity v. determine the final velocity of each block after all subsequent collisions. assume all collisions are elastic.
Homework Equations
conservation of momentum for elastic collisions -- m1vi + m2vi = m1v1f + m2v2f
conservation of energy for elastic collisions -- 1/2m1v1i2 + 1/2m2v2i2 = 1/2m1v1f2 +
1/2m2v1f2
The Attempt at a Solution
I tried this a couple different ways but its confusing without numbers
I also don't know if I should use just momentum or just energy or a combination of both
thanks for the help!