Answer: Zero.
- A Maximum
- B Equal to initial
- C Zero
- D 9.8 m/s
Correct answer: C. Zero
Explanation: At the highest point, the vertical component of velocity becomes zero before the stone returns.

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.