Solved: PHYSICS Question for NEET

NEET PHYSICSEasy

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

Velocity

Acceleration

Kinetic energy

Displacement

Velocity: In uniform circular motion, while the speed (magnitude of velocity) is constant, the direction of motion changes continuously at every point. Since velocity is a vector quantity involving both magnitude and direction, it is not constant .
Acceleration: The particle experiences centripetal acceleration directed towards the center of the circle. Although its magnitude ( $v^2/R$ ) is constant, its direction changes continuously as the particle moves. Thus, the acceleration vector is not constant .
Kinetic Energy: Kinetic energy is a scalar quantity defined as $K = \frac{1}{2}mv^2$ . Since the mass ( $m$ ) and speed ( $v$ ) are constant, the kinetic energy remains constant throughout the motion.
Displacement: Displacement is a vector connecting the initial position to the final position. As the particle moves, its position changes, so displacement is not constant.

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