AP Physics 1mediummcq1 pt
A 2.0 kg hoop of radius 0.30 m rolls at 3.0 m/s. Its total kinetic energy is
A.18 J
B.9.0 J
C.27 J
D.13.5 J
Explanation
Core Concept
K = ½mv² + ½(mr²)(v/r)² = 9.0 + 9.0 = 18 J.
Correct Answer
A18 J
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