The distance of one second of longitude varies depending on the latitude due to the curvature of the Earth. At the equator, one second of longitude is approximately 30.87 meters, but this distance decreases as you move toward the poles. At higher latitudes, the distance can be significantly less, approaching zero at the poles where all lines of longitude converge.
There are 1000 meters/second in 1 kilo meters/second
1 mile per hour = 0.44704 meter per second (rounded)
(1/0.18) = 5.555 meters per second (rounded)
1 m/h (1609 meters/1 mile)(1 hour/3600 sec.) = 0.45 meters per second ---------------------------------
x meters/second = 55 miles/1 hour * 1 hour/ 60 mins * 1 min/ 60 seconds = .0153 miles / second .0153 miles / second * 1,609.344 meters/1 mile = 24.6 meters/second
There are 1000 meters/second in 1 kilo meters/second
1 foot per second = 0.3048 meters per second.
1.8km = 1 nautical mile or knot
At the equator 1° of latitude or longitude is equal to about 111 kilometers (69 miles). This remains the same for latitude (north-south) measurements, but the longitude lines get closer together as you move poleward.
1 mile per hour = 0.44704 meter per second (rounded)
1" in latitude represents a distance of about 102 feet. 1" of longitude represents a distance of about 102 feet along the equator. The farther from the equator you are, the shorter 1" of longitude becomes. At the north and south poles, all longitudes converge in one point.
(1/0.18) = 5.555 meters per second (rounded)
1 knot is equal to approximately 0.514 meters per second.
1 mph = 0.44704 meters per second.
In latitude, 1 second is equivalent to roughly 30.8 meters. In latitude, 1 second is equivalent to roughly 30.8 meters along the equator, and it shrinks steadily to zero at the poles. In general, it's 30.8 meters multiplied by the cosine of the latitude where it's being measured.
2 feet per second = 0.6096 meters per second.
(1/32) in = 0.79375 millimeters