⚛️ Physics · Motion in a Plane · NEET & JEE

A particle moves along x-axis such that acceleration = -ω²x. This represents:

Answer: Simple harmonic motion.

A Uniform motion
B Projectile motion
C Simple harmonic motion
D Circular motion

Correct answer: C. Simple harmonic motion

Explanation: a = -ω²x is the defining equation of Simple Harmonic Motion: acceleration proportional to and opposite to displacement.

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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A particle moves along x-axis such that acceleration = -ω²x. This represents:

Concept context

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