Question

A white billiard ball with mass m_{w} = 1.47 kg is
moving directly to the right with a speed of v = 3.01 m/s and
collides elastically with a black billiard ball with the same mass
m_{b} = 1.47 kg that is initially at rest. The two collide
elastically and the white ball ends up moving at an angle above the
horizontal of θ_{w} = 68° and the black ball ends up moving
at an angle below the horizontal of θ_{b} = 22°. What is
the final speed of the white ball? What is the final speed of the
black ball? What is the magnitude of the final total momentum of
the system? What is the final total energy of the system?

Answer #1

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