Question

A turntable has a moment of inertia of 3.00 × 10−2 kg · m2 and rotates...

A turntable has a moment of inertia of 3.00 × 10−2 kg · m2 and rotates freely on a frictionless support at 25.0 rev / min. A 0.600 kg putty ball is dropped vertically onto the turntable and glued at a point 0.100 m from the center.

By what factor does the kinetic energy of the system change after the putty is dropped onto the turntable?

  TO.
0.91

  B.
1.00

  C.
0.83

  D.
1.50

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