AP Physics 1mediummcq1 pt
A solid sphere (I = ⅖mr², m = 1.0 kg, r = 0.50 m) rolls at 4.0 m/s. Its total kinetic energy is
A.11 J
B.8.0 J
C.3.2 J
D.5.6 J
Explanation
Core Concept
K = ½mv² + ½Iω² = 8.0 + 3.2 = 11.2 J ≈ 11 J.
Correct Answer
A11 J
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