Question
Differentiate between healthy and disease free.
| Healthy | Disease Free | |
| i. | It is a state of complete physical, mental and social well being. | It is a state of absence of discomfort or derangement in any part of body. |
| ii. | A healthy person will be disease free. | A disease free person can be healthy or unhealthy. |
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A body is moving along a circular path of radius R. What will be the distance travelled and displacement of the body when it completes half a revolution?