You cannot. Revolutions per minute are a measure of angular velocity whereas metres per minute are a measure of linear velocity. There is no simple way to convert from one to the other.
For example, at any given rpm, a point on the rim of a wheel is moving much faster than a point near the hub.
You need the distance of a point from the axis of revolution (in metres) to convert angular speed to linear speed.
If the distance from the centre is r metres then the point moves through 2*pi*r metres every revolution.
ie 1 rpm = 2*pi*r linear metres per minute.
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"Radian" is a distance. "Revolution per minute" is a speed. Those two units measure different quantities, and they don't convert into each other. It'll help to know that 1 revolution is (2 pi) radians. So "one revolution per minute" is "2 pi radians per minute", etc.
1 furlong = 201.168 metres. 1 fortnight = 20,160 minutes So multiply furlongs per fortnight by 201.168/20160 = 0.00998 to convert to metres per minute. That is near enough 0.01 so just divide by 100.
250 metres in 2.5 minutes = 250/2.5 = 100 metres per minute.250 metres in 2.5 minutes = 250/2.5 = 100 metres per minute.250 metres in 2.5 minutes = 250/2.5 = 100 metres per minute.250 metres in 2.5 minutes = 250/2.5 = 100 metres per minute.
40 km = 40,000 metres1 hour = 60 minutesSo40 km/hour = 40,000 metres per 60 minutes= 40,000/60 metres per minute= 666.66... recurring metres per minute.40 km = 40,000 metres1 hour = 60 minutesSo40 km/hour = 40,000 metres per 60 minutes= 40,000/60 metres per minute= 666.66... recurring metres per minute.40 km = 40,000 metres1 hour = 60 minutesSo40 km/hour = 40,000 metres per 60 minutes= 40,000/60 metres per minute= 666.66... recurring metres per minute.40 km = 40,000 metres1 hour = 60 minutesSo40 km/hour = 40,000 metres per 60 minutes= 40,000/60 metres per minute= 666.66... recurring metres per minute.
Easy! Divide by 200. So 1000 feet per minute = 5 metres per second (roughly). It also equals 10 knots incidentally.