(5280 X 2)/8
less than a second if a mirror a second
At 1000mm per second it will take 91.44 seconds (1 minute 31.44 seconds) to travel 100 yards.
It takes 3 seconds.
(4 meters/second)(40 seconds) = 160 meters.
1518km
245 ft in 2.59 seconds = 94.595 ft per second
Light travels approximately 186,282 miles per second, so it takes about 1/186,282 seconds to travel 1 mile.
distance = speed x time. Multiply the speed of light (in miles/second in this case) by the time in seconds, to get the distance travel in miles.
20 feet in 0,5 seconds ==> 40 feet per second 40 feet per second * 3 seconds = 120 feet
100 seconds. (10 units of 100000 in 1000000, so 10 X 10 seconds = 100 seconds)
Ten seconds.
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