"vel[2] v time
0.0000000000000	0.0000000000000
0.3515742187500	-0.0186477097203
0.7031484375000	-0.0198308965989
1.0547226562500	-0.0193137574137
1.4062968750000	-0.0183044937654
1.7578710937500	-0.0179501665835
2.1094453125000	-0.0214258166053
2.4610195312500	-0.0248200400326