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Centripetal Force Multiple Questions and Answers.
| 1. | On being displaced, the centre of mass of unstable equilibrium goes? | ||
| A. | Higher | ||
| B. | Neither higher nor lower | ||
| C. | First higher and then lower | ||
| D. | Lower | ||
| 2. | Which of the following stays in equilibrium even after being slightly displaced? | ||
| A. | Stable equilibrium | ||
| B. | Unstable equilibrium | ||
| C. | Neutral equilibrium | ||
| D. | Rigid body | ||
| 3. | The flying wheel attached to the shaft of steam engine works on the principle of? | ||
| A. | Centripetal action | ||
| B. | Moment of inertia | ||
| C. | Newton’s third law of motion | ||
| D. | Conservation of momentum | ||
| 4. | A wheel of mass 8kg and radius of gyration 25cm is rotating at 300rpm. What is its moment of inertia? | ||
| A. | 0.5 kgm2 | ||
| B. | 10 kgm2 | ||
| C. | 5 kgm2 | ||
| D. | 0.25 kgm2 | ||
| 5. | The moment of inertia of a uniform circular disc about its diameter is 100gcm2. What is its moment of inertia about its tangent? | ||
| A. | 200 gcm2 | ||
| B. | 100 gcm2 | ||
| C. | 900 gcm2 | ||
| D. | 500 gcm2 | ||
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