Question
A body moving in a circular path with a constant speed has a ___
Answer: Option C
:
C
![Click to Enlarge Image A Body Moving In A Circular Path With A Constant Speed Has A...](https://lakshyaeducation.in/quizpics/quiz/59365_0cae54bcf9241e1291ab4d9231d8617b910de31820160701-5603-17j35qu.png)
We can see that direction of velocity and acceleration changes continuously
∴ Both are not constant.
Momentum is m.⃗v which depends on velocity and changes with velocity.
The only quantity that is constant is speed and kinetic energy is 12m|⃗v|2 where|⃗v| is the speed.
∴ Answer is kinetic energy.
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:
C
![Click to Enlarge Image A Body Moving In A Circular Path With A Constant Speed Has A...](https://lakshyaeducation.in/quizpics/quiz/59365_0cae54bcf9241e1291ab4d9231d8617b910de31820160701-5603-17j35qu.png)
We can see that direction of velocity and acceleration changes continuously
∴ Both are not constant.
Momentum is m.⃗v which depends on velocity and changes with velocity.
The only quantity that is constant is speed and kinetic energy is 12m|⃗v|2 where|⃗v| is the speed.
∴ Answer is kinetic energy.
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