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A torque of $\tau = 10 \text{ Nm}$ is applied to a body with a moment of inertia of $I = 2 \text{ kg m}^2$. What is the angular acceleration $\alpha$ of the body in $\text{rad/s}^2$?
- A.2
- B.20
- C.5
- D.0.2
Show correct answer & step-by-step solution
Correct answer: C — 5
Solution
According to Newton's second law for rotation, . Rearranging for angular acceleration gives .
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