[know.your.why]

I have to figure out a better timer. .20 seconds...seems to long. Watching the video...its faster than .2s.

any ideas?

[Theoria]

ouch on R, but 42 mph is probably correct. The numbers make sense, .2s is accurate. Most likely range is 40mph to 55mph with variables. Say 5 frames, using measurements, and that will get 53mph. 53mph would be olympic level female speed from looking around the net.