Question 131955
125/210=.595238 MPS.
125/215=.5813953 MPS.
(.595238-.5813953)/2=.0138427/2=.00692 mps for the speed of the wind.
.00692*360=2.49  or 2.5 mph. for the wind.
.595238*360=214.28568 or 214 mph. with the wind.
.5813953*360=209.3 or 209 mph. against the wind.
214-2.5=211.5 mph. speed of Superman
209+2.5=211.5 mph. speed of Superman.