Question 1

How fast do objects fall?

Accepted Answer

In a vacuum, objects accelerate at 9.81 m/s² regardless of mass. With air resistance, terminal velocity depends on shape and density.

Question 2

What is terminal velocity for a human?

Accepted Answer

A skydiver in spread-eagle position reaches about 200 km/h (120 mph). Head-down position can exceed 300 km/h.

Question 3

How long does it take to fall a certain distance?

Accepted Answer

Use t = √(2h/g). From 100 meters, it takes about 4.5 seconds to hit the ground (ignoring air resistance).

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