Can Conservation of Momentum Solve This Collision Problem?

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Homework Statement

Two particles of mass m, connected by a rod of lengh L, are at rest. Another particle of mass m moving at v0 strikes one of the particles at a right angle and sticks to it. a) Find the linear velocity, angular velocity about center of mass. b) which point is momentarily stationary.



Homework Equations


Conservation of linear and angular momentum


The Attempt at a Solution


I thought it was as simple as doing conservation of momentum, but I might be wrong.

I appreciate any help
 
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superpig10000 said:
I thought it was as simple as doing conservation of momentum, but I might be wrong.
But you might be right also. Now get busy! (Yes, apply conservation of angular and linear momentum.)
 
Thread 'Need help understanding this figure on energy levels'

Thread 'Need help understanding this figure on energy levels'

This figure is from "Introduction to Quantum Mechanics" by Griffiths (3rd edition). It is available to download. It is from page 142. I am hoping the usual people on this site will give me a hand understanding what is going on in the figure. After the equation (4.50) it says "It is customary to introduce the principal quantum number, ##n##, which simply orders the allowed energies, starting with 1 for the ground state. (see the figure)" I still don't understand the figure :( Here is...
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Thread 'Understanding how to "tack on" the time wiggle factor'

Thread 'Understanding how to "tack on" the time wiggle factor'

The last problem I posted on QM made it into advanced homework help, that is why I am putting it here. I am sorry for any hassle imposed on the moderators by myself. Part (a) is quite easy. We get $$\sigma_1 = 2\lambda, \mathbf{v}_1 = \begin{pmatrix} 0 \\ 0 \\ 1 \end{pmatrix} \sigma_2 = \lambda, \mathbf{v}_2 = \begin{pmatrix} 1/\sqrt{2} \\ 1/\sqrt{2} \\ 0 \end{pmatrix} \sigma_3 = -\lambda, \mathbf{v}_3 = \begin{pmatrix} 1/\sqrt{2} \\ -1/\sqrt{2} \\ 0 \end{pmatrix} $$ There are two ways...
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