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CBSE Class 9 Answered

It is said that in a uniform circular motion although the magnitude of velocity remains the same, there is a continuous change in direction of motion. Why does the magnitude of velocity remain the same despite the continuous change in direction of motion?
Asked by sudip.mondal09 | 21 May, 2021, 11:18: AM
answered-by-expert Expert Answer
It is not mandatory that velocity should remains constant in circular motion.
What is stated for circular motion was , though magnitude of velocity remains constant ,
there is change in direction during circular motion . This gives acceleration in radial direction. 
 
Normally we are under the impression , when magnitude of velocity remains same , there wil not be acceleration or retardation.
 
Thiis is true only in linear motion , i.e., motion along straight line.
 
In Circular motion, even if magnitude of velocity remains constant , change in direction gives radial acceleration.
 
If the magnitude of velocity changes in circular motion , we get tangential acceleration in addition to radial acceleration
Answered by Thiyagarajan K | 21 May, 2021, 11:29: AM

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