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jli10
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Homework Statement
A ball of mass [itex]m_1[/itex] travels along the x-axis in the positive direction with an initial speed of [itex]v_0[/itex]. It collides with a ball of mass [itex]m_2[/itex] that is originally at rest. After the collision, the ball of mass [itex]m_1[/itex] has velocity [itex]{v_1}_{x}{\hat{x}}+{v_1}_{y}{\hat{y}}[/itex] and the ball of mass [itex]m_2[/itex] has velocity [itex]{v_2}_{x}{\hat{x}}+{v_2}_{y}{\hat{y}}[/itex]. Consider the following five statements:
I) [itex]0=m_1{v_1}_x+m_1{v_2}_x[/itex]
II) [itex]m_1v_0=m_1{v_1}_y+m_2{v_2}_y[/itex]
III)[itex]0=m_1{v_1}_y+m_2{v_2}_y[/itex]
IV) [itex]m_1v_0=m_1{v_1}_x+m_1{v_1}_y[/itex]
V) [itex]m_1v_0=m_1{v_1}_x+m_2{v_2}_x[/itex]
Of these statements, the system must satisfy
a) I and II
b) III and V
c) II and V
d) III and IV
e) I and III
Homework Equations
[itex](mv)_i=(mv)_f[/itex]
The Attempt at a Solution
I've never learned how to incorporate conservation of momentum into a 3-d plane...
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