(
):
(
):
(
):
(
):
T
1
= 2 * π * √
l / g
=
0
(
)
V
1
= 1/ T
1
=
0
(
)
T
2
= 2 * π * √
l / g
=
0
(
)
V
2
= 1/ T
2
=
0
(
)