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Mass and Density of the Earth :: Discussion
| 2. | A man waves his arm while walking. This is? | |
| A. | To keep constant velocity | |
| B. | To ease the tension | |
| C. | To increase the velocity | |
| D. | To balance the effect of earth’s gravity | |
| Answer: Option D | |
| Explanation: | |
|
The waving of the arm helps in keeping the centre of gravity at a suitable position. This helps the man to walk comfortably. |
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| Tutorial Link: |
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