For the motion of a spherical ball under water, can its drag force be calculated by knowing only its mass and deceleration?
ok awesome. I thought F=ma was only valid for terminal velocity so I was wondering about the drag equation.Thanks again guys!
No. The mass times the acceleration in this case will give you drag minus weight (draw a free body diagram). You will have to add the weight to the net force to get the drag.
Xenekaro said:I find the drag force calculations to be too simple to actually warrant the need to formulate the more complex drag equation. I mean why worry about drag coefficient if you can calculate the drag just by knowing the object's mass and deceleration rate.