🎯 Projectile motion
Unit 3 · Forces, energy & reactions · 9 min
Ignoring air resistance, a projectile moves at constant speed horizontally while gravity accelerates it downward. At a given speed, 45° gives the longest range. An object fired horizontally lands at the same time as one dropped from the same height.
Words in this lesson
- 重力 (zhòng lì) — gravity
- 空气阻力 (kōng qì zǔ lì) — air resistance
Project: In the sim, launch at 30°, 45° and 60°, log the ranges in a table.
