unity3d - How to calculate the time it takes to reach terminal velocity under constant acceleration? -


i'm using rigidbody in unity3d under constant, not changeing acceleration. rigidbody can have drag value of > 0. i'm trying figure out how long take object reach speed. understand finding time takes reach terminal velocity might not useful, i'm interested in finding time needed reach percentage of terminal velocity.

known values include mass, force applied rigidbody, terminal velocity , drag. i'm looking solution ignores gravity, i'm interested in 1 doesn't.

i hope can me that, because thing learned google should take few math classes... :/

with time in seconds, speed in m/s , acceleration in m/s/s, acceleration being constant , speed being known

time = speed/(acceleration - drag)

if drag constant reaction acceleration

if i'm not mistaken...


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