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Gravitational and Gravity :: Discussion
| 3. | The value of escape velocity on a certain planet is 2km/s. Then the value of orbital speed for a satellite orbiting close to its surface is? | |
| A. | 12km/s | |
| B. | 1km/s | |
| C. | √2km/s | |
| D. | 2√2km/s | |
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