If an Object Were to Suddenly Shrink and Decrease Its

question 57

Multiple Choice

If an object were to suddenly shrink and decrease its moment of inertia by a factor of 3,what is the difference in energy between the final and initial rotational kinetic energies?

• A)3 times initial K_rot
• B)9 times initial K_rot
• C)8 times initial K_rot
• D)2 times initial K_rot
• E)zero,K_rot remains the same