A mass $$\(m\)$$ moving to the right with speed $$\(v\)$$ collides and sticks to a mass of $$\(3 m\)$$ moving upward with a speed $$\(2 v\)$$ as shown. What is the final velocity of the two masses?
A.
\(\frac{3}{2} v \hat{i}+\frac{1}{4} v \hat{j}\)
B.
\(\frac{1}{4} v \hat{i}+\frac{3}{2} v \hat{j}\)
C.
\(\frac{1}{3} v \hat{i}+\frac{2}{3} v \hat{j}\)
D.
\(\frac{2}{3} v \hat{i}+\frac{1}{3} v \hat{j}\)
E.
none of the above
Exam No：AP Physics C Practice Test Year：2024 Question No：7
Answer:
B
Knowledge points:
4.3 Conservation of Linear Momentum, Collisions
Solution:
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