Two Equal Spheres, Labeled a and B in the Figure $\omega$

question 22

Multiple Choice

Two equal spheres, labeled A and B in the figure, are attached to a massless rod with a frictionless pivot at the point P. The system is made to rotate clockwise with angular speed $\omega$ on a horizontal, frictionless tabletop. Sphere A collides with and sticks to another equal sphere that is at rest on the tabletop. Note: the masses of all three spheres are equal. What is the angular speed of the system immediately after the collision?

• A)\(\omega\)
• B)0.82\(\omega\)
• C)0.60\(\omega\)
• D)0.56\(\omega\)
• E)0.29\(\omega\)

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