28
At 30 mph, a car is traveling at 2,640 feet per minute.
28 ÷ 30 × 60 = 56 mph
20.25 miles
44 feet per second.
30 miles per hour is 44 feet per second.
30 miles.
At 30 mph it takes about one second to travel 45 feet.
44 feet per second.
44 feet per second.
30 mph = 30*5280 feet per hour = 30*5280/3600 feet per second = 44 feet per second (The conversion factor from mph to fps is 22/15)
35 feet at 30 mph requires about 0.8 seconds.