MCQ
A sphere of mass $10\; kg$ and radius $0.5\; m$ rotates about a tangent. The moment of inertia of the sphere is
- A$5$
- B$2.7$
- ✓$3.5$
- D$4.5$
✓
Answer
Correct option: C.
$3.5$
c
(c)$I = \frac{7}{5}M{R^2} = \frac{7}{5} \times 10 \times {(0.5)^2} = 3.5kg{\rm{ - }}{m^2}$
(c)$I = \frac{7}{5}M{R^2} = \frac{7}{5} \times 10 \times {(0.5)^2} = 3.5kg{\rm{ - }}{m^2}$
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