A rifle bullet is photographed in flight using two flashes of light separated by a time interval of (1.00 ± 0.02) ms. The first image of the bullet on the photograph appears to be at a position of (22.5 ± 0.5) cm on a scale underneath the flight path. The position of the second image is (37.5 ± 0.7) cm on the same scale. Find the speed of the bullet and its absolute uncertainty.