A body moving in a circular path with a constant speed, it has constant
A body moving in a circular path with a constant speed, it has constant
momentum
kinetic energy
acceleration
velocity
Solution
We can see that direction of velocity and acceleration change continuously.
$\therefore$ both are not constant.
Momentum is $p=m \vec{v}$ which depends on velocity and changes with velocity. The only quantities, the speed $|\vec{v}|$ and the kinetic energy is $\frac{1}{2} m|\vec{v}|^2$ are constant during uniform circular motion.
Therefore, the answer is kinetic energy.
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