×
v
fad
= a
pd
/U
d
• n
s
=
a
pd
U
d
n
s
D
s
v
s
v
fad
= (√(2•r
d
•a
ed
)/U
d
-0.5) • n
s
=
r
d
a
ed
U
d
n
s
D
s
v
s
