Hi Dilshan,
Where are you having problems?
If you use the DAQmx VIs to read the voltage, you can apply a custom scaling to convert the output to m/s.
If you have some other data source, and so you receive a voltage directly (or you want to avoid using the built-in scaling), you only need to use a linear equation to convert from one to the other - just make sure you know what equation values you want (because initially I thought you wanted y=2x+1, but I see that doesn't fit. Then I considered y=1.9x+1, but you also list 10m/s for 5V, which would fit more likely to y=2x (which doesn't match the 1m/s at 0V point)).
Make sure you've checked the range you expect (perhaps it reads 0V at 0m/s?) and that the expected output is linear. If not, use a different equation! LabVIEW can do whichever you need.