h
e
i
g
h
t
o
f
l
a
d
d
e
r
0
.
3
w
L
=
3
0
0
N
w
m
=
8
0
0
N
L
=
3
m
d
=
1
.
2
5
m
θ
=
1
.
1
2
0
F
=
H
=
2
9
8
.
7
0
0
N
μ
s
=
0
.
2
7
1
5
1
4