⚛️ Physics · Motion in a Plane · NEET & JEE

Two projectiles launched at complementary angles (θ and 90° − θ) with the same speed have the same:

Answer: range.

A range
B maximum height
C time of flight
D landing speed direction

Correct answer: A. range

Explanation: Complementary launch angles give the same horizontal range.

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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Two projectiles launched at complementary angles (θ and 90° − θ) with the same speed have the same:

Concept context

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