The U. S. Navy and the British Navy are doing joint training exercises in the Mediterranean. Both navies are practicing firing missiles at a target, but their firing velocities don't match. US missiles travel at 640 miles per hour. The British need to match the velocity of the US missiles, but their speed is measured in meters per second. What must the British velocity be to match the US missile velocity at 640 mph? Begin by converting miles to kilometers. (1.0 mile = 1.6 km)