A particle is moving in a circle with uniform speed. It has constant (a) velocity. (b) acceleration. (c) kinetic energy. (d) displacement.

Answer: (c). Velocity and acceleration change direction every instant, so they are not constant vectors. Displacement keeps changing as the particle moves. Speed is constant, so KE = 1/2mv² is constant. So the answer is (c) kinetic energy.

A particle is moving in a circle with uniform speed. It has constant | MHT CET 2024 (15 May, Shift 2)

Q12MHT CET 2024 · 15 MAY · SHIFT 2Easy

Centripetal Acceleration & Force

A particle is moving in a circle with uniform speed. It has constant

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Answer: (c)

Velocity and acceleration change direction every instant, so they are not constant vectors.
Displacement keeps changing as the particle moves.
Speed is constant, so $KE = \frac{1}{2}mv^2$ is constant.
So the answer is (c) kinetic energy.

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