- #1
VitaX
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Homework Statement
Homework Equations
V1f = (m1 - m2 / m1 + m2) * V1i
V2f = (2m1 / m1 + m2) * V1i
.5mVi^2 + mgyo = .5mVi^2 + mgy1
The Attempt at a Solution
V1 = (2gyo)^(1/2) = (2*9.8*.34)^(1/2) = 2.5815 m/s
a) V1f = (.650 - 4.40 / .650 + 4.40) * 2.5815 = -1.917 m/s
b) V2f = (2*.650 / .650 + 4.40) * 2.5815 = .6645 m/s
I don't understand why part a is wrong and part b is right. Doesn't make any sense to me since the question is asking for the speed after the collision in both part a and b. What did I do wrong?