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why is kinetic energy not changing in a ciclular motion although we know that the velocity varies in a circular motion? i got the ans because centripital accleration remains constant. that is v^2/r. as v reamins constant.but im not satisfied can i get another reason

 
why is kinetic energy not changing in a ciclular motion  although we know that the velocity varies in a circular motion?
 i got the ans  
because centripital accleration remains constant.
that is v^2/r.
as v reamins constant.but im not satisfied can i get another reason

Grade:11

1 Answers

Aman
15 Points
7 years ago
Analyse the formula of Kinetic energy energy again.
It is K=1/2 mv^2
where v=speed of the object and not velocity
And in uniform circular motion although the velocity changes due to change in direction but speed remains constant throughout the motion.
Hence, v is constant and the kinetic energy remains constant.
Hope this helps

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