Q. A wheel is rotating at 30 rad/s. After 5 seconds, it comes to rest due to a constant torque. What is the angular deceleration?A wheel is rotating at 30 rad/s. After 5 seconds, it comes to rest due to a constant torque. What is the angular deceleration?

एक पहिया 30 rad/s पर घूम रहा है। 5 सेकंड के बाद, यह निरंतर टॉर्क के कारण आराम की स्थिति में आ जाता है। कोणीय मंदी क्या है?

3 rad/s²
3 रेड/से.²

6 rad/s²
6 रेड/से.²

5 rad/s²
5 रेड/से.²

4 rad/s²
4 रेड/सेकंड

Angular deceleration $\alpha$ is the change in angular velocity divided by time:

α = \frac{ω_{i} - ω_{f}}{t} = \frac{30 - 0}{5} = 6 {rad/s}^{2}

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