AP Physics 1mediummcq1 pt
A 4.0 kg disk of radius 0.50 m rolls at 2.0 m/s. Its total kinetic energy is
A.12 J
B.8.0 J
C.4.0 J
D.16 J
Explanation
Core Concept
K = ½mv² + ½Iω² = 8.0 + 4.0 = 12 J.
Correct Answer
A12 J
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