A boy revolves 2½ revolution in a circular path of radius 20 metre. f

1.	A boy revolves 2½ revolution in a circular path of radius 20 metre. find the distance and displacement covered at the end of his journey
Answer» ong>Explanation: According to your question, the body moves from point A to point B thereby COMPLETING half a revolution. SINCE distance is the length of PATH covered therefore it will be equal to half the circumference i.e. 1/2 × 2pi r or pi × r. And the displacement is equal to the distance between initial and final point. Therefore it will be equal to the diameter or r+r=2r.

A boy revolves 2½ revolution in a circular path of radius 20 metre. find the distance and displacement covered at the end of his journey

Answer»

ong>Explanation:

According to your question, the body moves from point A to point B thereby COMPLETING half a revolution. SINCE distance is the length of PATH covered therefore it will be equal to half the circumference i.e. 1/2 × 2pi r or pi × r. And the displacement is equal to the distance between initial and final point. Therefore it will be equal to the diameter or r+r=2r.

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A boy revolves 2½ revolution in a circular path of radius 20 metre. find the distance and displacement covered at the end of his journey​

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A boy revolves 2½ revolution in a circular path of radius 20 metre. find the distance and displacement covered at the end of his journey