⚛️ Physics · Motion in a Plane · NEET & JEE

A projectile is launched at 20 m/s at 30° to the horizontal. Its range is (g = 10 m/s²):

Answer: about 34.6 m.

A about 34.6 m
B exactly 20 m
C exactly 40 m
D exactly 10 m

Correct answer: A. about 34.6 m

Explanation: R = u²sin2θ/g = 400 × sin60°/10 = 400 × 0.866/10 ≈ 34.6 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.

Read the full Motion in a Plane notes →

A projectile is launched at 20 m/s at 30° to the horizontal. Its range is (g = 10 m/s²):

Concept context

More Motion in a Plane questions