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Question 55: A body is moving along a circular path of radius
Physics by Lakhmir Singh
Physics

Class 9

Lakhmir Singh

Author:
Lakhmir Singh
Publisher:
S. Chand
Subject:
Science
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Question 55: 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?

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Updated on: Jun 2, 2023

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Question 55: 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?
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Answer: We have to analyse the distance and displacement of a body that has covered half the perimeter of a circle.
Distance travelled in half a rotation of a circular path is equal to the circumference of semi-circle.
Distance travelled = πR
Displacement is calculated from the initial and final positions of a body. It is independent of the path covered. So, displacement is the diameter of the semi-circle.
Hence, displacement is 2R, where R is the radius of the circular path.
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Question Text
Question 55: 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?
Updated OnJun 2, 2023
TopicMotion
SubjectScience
ClassClass 9
Answer TypeText solution:1 Video solution: 6
Upvotes770
Avg. Video Duration3 min