Q. In rotational motion, the angular acceleration is directly proportional to what?

घूर्णी गति में कोणीय त्वरण किसके अनुक्रमानुपाती होता है?

Torque
टॉर्कः

Moment of inertia
निष्क्रियता के पल

Angular velocity
कोणीय वेग

Radius
त्रिज्या

From the rotational analog of Newton’s second law:

τ = I α \Rightarrow α = \frac{τ}{I}

This shows that angular acceleration $\alpha$ is directly proportional to torque $\tau$ , assuming moment of inertia $I$ is constant.

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