- #1
jff0404
- 9
- 0
1. After dropping coffee filters, I have to derive or describe the relationships between air Resistance(R) and v or v^2, whichever is right, and draw a graph. I can find derivations on internet as long as I site.
I have time, v, height and acceleration, but no reference area. All the equations I've seen need the ra, is there any way I can find R without it?
2. v=m/s
a= v/s = m/s^2
Net F = R-w
w=mg
D = Cd * r * V^2 * A/2
3. When the object reaches terminal v, a=0. So I put 0 for a= (W - D)/m that I also got from the internet, but I got something useless with m/s units(supposed to be in N because R is a force). I don't know what I'm supposed to do!
I have time, v, height and acceleration, but no reference area. All the equations I've seen need the ra, is there any way I can find R without it?
2. v=m/s
a= v/s = m/s^2
Net F = R-w
w=mg
D = Cd * r * V^2 * A/2
3. When the object reaches terminal v, a=0. So I put 0 for a= (W - D)/m that I also got from the internet, but I got something useless with m/s units(supposed to be in N because R is a force). I don't know what I'm supposed to do!