Thanks. What I get from these calculations is that fall rate would be the same in both instances. What trips me up is thinking about a helicopter or other VTOL aircraft descending straight down to land with a net mass of maybe 20 lbs or something, versus a 20 lb object. The helicopter comes down...
I'm trying to figure out how fast an object will fall/accelerate with a constant upward force applied to it. For instance, a 100 lb object with a 25 lb upward force applied to it. Would it fall/accelerate at the same speed as a 75 lb object?
I am looking for an estimated terminal velocity of a 20 lb bowling ball falling through 40,000 feet. I have looked at the equation, but am not sure what to use for the drag coefficient. Thanks for any help.