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Engineering
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Mass and Density of the Earth :: Discussion
| 6. | A ball is dropped from a spacecraft revolving around the earth at a height of 120km. What will happen to the ball? | |
| A. | It will go very far in space | |
| B. | It will fall down to the earth gradually | |
| C. | It will move with the same speed tangentially to the spacecraft | |
| D. | It will continue to move with the same speed along the original orbit of spacecraft | |
| Answer: Option D | |
| Explanation: | |
|
In the absence of any external torque, the ball will continue to move at the same speed along the original orbit of space craft. |
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