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1. Freefall in Uniform Gravitational Field with Air Resistance (velocity)
utFalling velocity (m/s)
uinfTerminal speed (m/s)
gStandard gravity
tTime of falling (s)
Variables...
  valueunitslink
ut
uinf
t
2. Freefall in Uniform Gravitational Field with Air Resistance (altitude)
yvertical position(altitude) (m)
y0initial vertical position(altitude) (m)
uinfterminal speed (m/s)
gStandard gravity
ttime (s)
Variables...
  valueunitslink
y
y0
uinf
t
3. Inverse-square law gravitational field ( free-fall time for two point objects on a radial path)
tyThe time after the start of the fall (s)
yThe distance between the centers of the bodies (m)
GNewtonian constant of gravitation
m1The mass of one of the objects (kg)
m2The mass of other object (kg)
y0The initial value of the distance between the centers of the bodies (m)
Variables...
  valueunitslink
ty
y
m1
m2
y0
6. Sears–Haack body (volume)
VVolume of the body (m3)
πpi
RmaxRadius at its maximum (at the center of the shape) (m)
LLength of the body (m)
Variables...
  valueunitslink
V
Rmax
L
7. Sears–Haack body (cross sectional area)
SxCross sectional area (m2)
VVolume of the body (m3)
LLength of the body (m)
πpi
xRatio of the distance from the nose to the whole body length (x between 0 and 1) (dimensionless)
Variables...
  valueunitslink
Sx
V
L
x
8. Radius of a Sears–Haack Body
rxLocal radius (m)
RmaxMaximym radius (at the center of the shape) (m)
x ratio of the distance from the nose to the whole body length ( x between 0 and 1) (dimensionless)
Variables...
  valueunitslink
rx
Rmax
x
9. Sears–Haack body (Drag Coefficient related to the maximum Radius)
CDDrag Coefficient (dimensionless)
πpi
RmaxMaximym radius (at the center of the shape) (m)
LLength of the body (m)
Variables...
  valueunitslink
CD
Rmax
L
10. Sears–Haack body (Wave Drag related to the maximum Radius)
DwaveWave Drag (N)
πpi
RmaxMaximym radius (at the center of the shape) (m)
LLength of the body (m)
ρDensity of the fluid (kg/m3)
UVelocity (m/s)
Variables...
  valueunitslink
Dwave
Rmax
L
ρ
U
11. Sears–Haack body (Wave Drag related to the Volume)
DwaveWave Drag (N)
VVolume of the body (m3)
πpi
LLength of the body (m)
ρDensity of the fluid (kg/m3)
UVelocity (m/s)
Variables...
  valueunitslink
Dwave
V
L
ρ
U
12. Sears–Haack body (Drag Coefficient related to the Volume)
CDDrag Coefficient (dimensionless)
VVolume of the body (m3)
LLength of the body (m)
Variables...
  valueunitslink
CD
V
L

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