⚛️ Physics · Motion in a Plane · NEET & JEE

A stone is thrown horizontally at 15 m/s from a tower 20 m high (g = 10 m/s²). Its horizontal range on the ground is:

Answer: 30 m.

A 30 m
B 15 m
C 45 m
D 20 m

Correct answer: A. 30 m

Explanation: Time to fall = √(2·20/10) = 2 s; range = 15 × 2 = 30 m.

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 stone is thrown horizontally at 15 m/s from a tower 20 m high (g = 10 m/s²). Its horizontal range on the ground is:

Concept context

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