⚛️ Physics · Motion in a Plane · NEET & JEE

For a particle in uniform circular motion of radius R and speed v, centripetal acceleration is directed:

Answer: Radially inward (toward center).

A Tangentially in direction of motion
B Radially outward
C Radially inward (toward center)
D Along axis of rotation

Correct answer: C. Radially inward (toward center)

Explanation: Centripetal acceleration = v²/R, always directed toward the center of the circle.

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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For a particle in uniform circular motion of radius R and speed v, centripetal acceleration is directed:

Concept context

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