"vel[2] v time
0.0000000000000	0.0000000000000
0.3515742187500	0.0007551225382
0.7031484375000	0.0009756185561
1.0547226562500	0.0012134468651
1.4062968750000	0.0014776442214
1.7578710937500	0.0017658955390
2.1094453125000	0.0020761682311
2.4610195312500	0.0023953599702