Question

a body is moving along a circular path of radius R what will be the distance and displacement of the body when it completetes half a revolution​

Answer 1

Answer:

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Explanation:

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Answer 2

Distance - πR and Displacement - 2R

Explanation:

If we consider the distance covered then we can see that the circumference of circle = 2πR . So distance covered in half circle = πR

Displacement is the shortest path covered so if we want to go around half of circular path the figure would be somewhat like above one ( ignore the bad drawing ).

So the shortest path to go through half of circular path ( or A to B ) would be the diameter which is 2R . ¶¶¶