Answer: v = rω.
- A v = rω
- B v = ω / r
- C v = r / ω
- D v = rω²
Correct answer: A. v = rω
Explanation: The linear speed is v = rω.

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.