Free fall occurs when an object moves only under the influence of gravity, without air resistance affecting its motion.

Key Points:

• Gravity (g): On Earth, gravity accelerates objects downward at about 9.8 m/s².
• Acceleration: In free fall, acceleration is constant regardless of an object’s mass.
• Velocity Formula: v = g × t
• Distance Formula: s = ½ × g × t²
• Air Resistance: In real life, air slows objects down, but in ideal conditions, it’s ignored.

Why It Matters:

Understanding free fall explains concepts in astronaut training, parachute design, and safety in engineering and sports.

Tips for Using the Simulation:

• Experiment with different heights and measure fall times.
• Compare your measured g to 9.8 m/s².
• Plot distance vs time² to check for a straight-line relationship in true free fall.