A Turntable Has a Moment of Inertia of 3

question 32

Multiple Choice

A turntable has a moment of inertia of 3.00 *10 ^-2 kg·m² and spins freely on a frictionless bearing at 25.0 rev/min. A 0.600-kg ball of putty is dropped vertically on the turntable and sticks at a point 0.100 m from the center. By what factor does the angular momentum of the system change after the putty is dropped onto the turntable?

• A) 1.22
• B) 1.00 (no change)
• C) 0.820
• D) 1.20

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