MCQ
A fly wheel is accelerated uniformly from rest and rotates through $5 \,rad$ in the first second. The angle rotated by the fly wheel in the next second, will be.........$rad$
- A$7.5$
- ✓$15$
- C$20$
- D$30$
✓
Answer
Correct option: B.
$15$
b
$5=\frac{1}{2} \alpha(1)^{2}$
$5=\frac{1}{2} \alpha(1)^{2}$
$\theta=\frac{1}{2} \alpha(2)^{2}$
$\theta-5=15$
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