According to the Untiy3D Technologies on : https://forum.unity.com/threads/is-rigidbody-mass-its-mass-or-weight.366263/
Mass != weight, it depend on the gravity, so we should make it simple, use it’s example :
A truck around 1000kg, Tennis ball 0.1kg, we can map Kg to Unity’s mass.
A adult should be 197.6 Pound, Convert to Kg = 89.6Kg
Ref : https://www.medicalnewstoday.com/articles/320917#average-weight-of-men-in-the-us
Ref : https://www.unitconverters.net/weight-and-mass/lbs-to-kg.htm
Adult human (upright position) = 1.0–1.3
Ref : https://en.wikipedia.org/wiki/Drag_coefficient
The drag coefficient of any object comprises the effects of the two basic contributors to fluid dynamic drag: skin friction and form drag.
| cd | Item |
|---|---|
| 0.001 | Laminar flat plate parallel to the flow ({\displaystyle Re<10^{6}} ) |
| 0.005 | Turbulent flat plate parallel to the flow ({\displaystyle Re>10^{6}} ) |
| 0.47 | Smooth sphere ({\displaystyle Re=10^{5}} ) |
| 0.81 | Triangular trapeze (45°) |
| 0.9-1.7 | Trapeze with triangular basis (45°) |
| 0.295 | Bullet (not ogive, at subsonic velocity) |
| 0.48 | Rough sphere ({\displaystyle Re=10^{6}} ) |
| 1.0–1.1 | Skier |
| 1.0–1.3 | Wires and cables |
| 1.0–1.3 | Adult human (upright position) |
| 1.1-1.3 | Ski jumper[17] |
| 1.28 | Flat plate perpendicular to flow (3D)[18] |
| 1.3–1.5 | Empire State Building |
| 1.8–2.0 | Eiffel Tower |
| 1.98–2.05 | Long flat plate perpendicular to flow (2D) |
