To travel 500 feet at 40 mph, it would take about 6 seconds. This is calculated by converting 40 mph to feet per second (40 mph = 58.67 fps) and dividing 500 feet by the speed in feet per second.
55.92 seconds.
13.64 seconds.
40 miles = 60 minutes. 40 / 360 * 13 = 1.444 where: 40 = miles, 360 = seconds in an hour, 13 = seconds. The car will travel approximately 1.4 km in 13 seconds.
3.409090.... seconds
1.28 seconds.
36 seconds.
About 40 seconds.
18/40 = 0.45hour = 1,620seconds
8.52 seconds
7 minutes and 30 seconds
34 minutes 40 seconds.