There are 12 x 3 x 1760 = 63360 inches in one mile. Therefore, 45 miles per hour is equal to 45 x 63360 = 2851200 inches per hour. There are 3600 seconds in one hour. Therefore, 2851200 inches per hour is equal to 2851200/3600 = 792 inches per second.
100 inches per second equates to 5.682 mph
One mile per hour is 17.6 inches per second. Just multiply mph by 17.6: 50 x 17.6 = 880 inches per second.
At 1000 mph, there are approximately 1467 feet per second.
17 meters per second is about 38.03 mph
15 mph = 22 feet per second
40 mph = about 58.6 feet per second.
55 mph = 24.59 meters per second.
55 mph = 80.6666 feet per second
350 feet per second = 238.64 mph
99 feet per second = 67.5 mph
7.5 kilometers per second = 16,777.02 mph
30 cm per second = 0.67 mph