- #1
philo2005
- 4
- 0
Hi
I am currently trying to work out the drag coefficient of a car, I know the formulae to work out CD, this being CD=FD/0.5xρv^2A. I can not figure out how to find FD as the formulae for this requires CD. Is there another way to find FD? The information I have is as follows:
Car Mass: 1350 kg
Rolling Resistance: 400 N
Cross Sectional Area: 2.2 m^2
Density of Air: 1.23 kg m^-3
Hill Gradient: 3.18 degrees
To find CD the equation below is used
CD=FD/0.5xρv^2A
However to find FD CD is requiredAN ATTEMPT AT THE SOLUTION WOULD BE
?FD?/0.5 x 1.23 kg/m^3 x 24.590 m/s^2 x 2.2
It is just the FD part I am not too sure about.I would greatly apprecitate any help offered as I am now completely stumped.
Thanks
I am currently trying to work out the drag coefficient of a car, I know the formulae to work out CD, this being CD=FD/0.5xρv^2A. I can not figure out how to find FD as the formulae for this requires CD. Is there another way to find FD? The information I have is as follows:
Car Mass: 1350 kg
Rolling Resistance: 400 N
Cross Sectional Area: 2.2 m^2
Density of Air: 1.23 kg m^-3
Hill Gradient: 3.18 degrees
To find CD the equation below is used
CD=FD/0.5xρv^2A
However to find FD CD is requiredAN ATTEMPT AT THE SOLUTION WOULD BE
?FD?/0.5 x 1.23 kg/m^3 x 24.590 m/s^2 x 2.2
It is just the FD part I am not too sure about.I would greatly apprecitate any help offered as I am now completely stumped.
Thanks