For a body to be in complete equilibrium:
Correct answer: D. Linear acceleration and angular acceleration both should be zero
- A. Linear acceleration is zero
- B. Angular acceleration is zero
- C. Linear acceleration is zero but angular acceleration is not zero
- D. Linear acceleration and angular acceleration both should be zero
Explanation
For a body to be in complete equilibrium, it must not experience any net force or torque. This means that both its linear acceleration and angular acceleration should be zero (Option D). This ensures that the body is neither translating nor rotating. Option A and B only address one aspect of motion each, and Option C allows for rotational motion, which contradicts the state of complete equilibrium.
This question appeared on the UHS MDCAT 2010 paper, which you can sit online with every answer explained.
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