- #1
Gear300
- 1,213
- 9
heheh...I need some help understanding something. If there was an object, such as a sphere, in water, gravity would be pushing it downwards, while a resistive force R = -bv would be pushing it upward (b as a constant).
that would imply that the net Force Fy would be
Fy = mg - bv = ma = m(dv/dt)
dv/dt = g - (b/m)v
How do I come up with
v = (mg/b)(1 - e^(-bt/m))
that would imply that the net Force Fy would be
Fy = mg - bv = ma = m(dv/dt)
dv/dt = g - (b/m)v
How do I come up with
v = (mg/b)(1 - e^(-bt/m))