1,200 feet per second = 818.2 mph
1,000 feet per second = about 681.8 mph
50 ft/sec or 34.1 mph
1,200 feet per minute = 13.64 miles per hour (rounded)
6.1 mph = 8.95 feet / second.
2,200 feet per second is 1,500 mph
15 mph = 22 feet per second
40 mph = about 58.6 feet per second.
Five mph equates to about 7.333 feet per second.
350 feet per second = 238.64 mph
69 mph is 101.2 feet per second.
55 mph = 80.6666 feet per second
1,000 mph = 1,466.66 feet per second