⚛️ Physics · Motion in a Plane · NEET & JEE

If a body moves with constant speed in a circular path, what changes?

Answer: Velocity.

A Speed
B Kinetic energy
C Velocity
D Mass

Correct answer: C. Velocity

Explanation: In circular motion at constant speed, direction changes continuously, so velocity (a vector) changes.

Projectile trajectories launched at 15, 30, 45, 60, 75 and 90 degrees at the same speed, each annotated with range R, maximum height H and time of flight T, with coloured dots marking equal time intervals

Projectiles at equal speed: range is maximum at 45°, and complementary angles (30° and 60°) share the same range. Image: Cmglee, CC BY-SA 3.0, via Wikimedia Commons.

Concept context

Vectors, projectile motion, uniform circular motion, and relative velocity - the foundation of 2D kinematics for NEET and JEE.

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If a body moves with constant speed in a circular path, what changes?

Concept context

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