MCQ
A constant torque acting on a uniform circular wheel changes its angular momentum from $A_0$ to $4A_0$ in $4\, second$. The magnitude of this toque is
- ✓$3A_0/4$
- B$A_0$
- C$4A_0$
- D$12A_0$
✓
Answer
Correct option: A.
$3A_0/4$
a
$\tau = \frac{{4{A_0} - {A_0}}}{4} = \frac{3}{4}{A_0}$
$\tau = \frac{{4{A_0} - {A_0}}}{4} = \frac{3}{4}{A_0}$
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