Vphysics & Qphysics

Linear Force affects the $origin (position) of the object in the World (induces Translational Motion).
- Push attempts to increase the distance between the objects: eg Collisions, Gravgun Attack1, Explosion, Wind, etc.
- Pull attempts to decrease the distance between the objects: eg Constraints, Gravgun Attack2, Gravity, etc.
Angular Force affects the $angles (orientation) of the object in the World (induces Rotational Motion).
- Torque attempts to rotate or spin the object about its own Center of Mass: eg Angular Deflection, Stability, func_rotating, phys_motor, point_viewcontrol

Mass of an object is its Inertial Mass] ie its resistance to acceleration.
Mass appears to have negligible affect on Torque, but Center of Mass is very important.

world constant : Water = 1kg/litre = 1kg/

Velocity
- Gravity = acceleration = 9.81 m/sec² (= 32 ft/sec² = 21.9 mph/sec)
- Sliding Friction at the object's surface(s). Pressure (eg weight) * Friction Coefficient:
Friction Coefficient is specific to each combination of surfaces; eg Rubber & Wood, Metal & Wood, Rubber & Metal, Rubber & Rubber, ... look-up table in Materials System ?

Surface area is not a factor because total pressure is distributed over whatever contact area,
- Fluid Friction, eg Aerodynamics, Hydrodynamics, etc is simply represented by the entity's "max speed" for flying, running, swimming, falling, etc.
Air Density = 0, Friction = 0 (negligible) : Terminal Velocity = worldconstant = 3500 units/sec (66.7 m/s)

Water Density = 1 kg/l, Friction = ?

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