Britain's speeds are signed in mph.
(Car speedometers measure in mph, but coach and lorry tachographs measure in kph.)
No.
Speed.
Leopards can run at speeds approaching 58 kilometres per hour, or 36 mph.
8 kilometres per hour (5.0 mph) but when feeding or attacking, the average shark can reach speeds upwards of 19 kilometres per hour (12 mph).
Speed limits in Britain are quoted in miles per hour and in Europe they are quoted in kilometres per hour.
There are many instances: for example, speed is measured in kilometres per hour where the ratio is measured between a distance (measured in kilometres) and time (measured in hours). So it is no big deal except that you need to mention the units.
I believe at higher speeds there will be more air resistance.
Speed is distance divided by time. So : you could have meters per second, or meters per hour, etc.
Miles per hour (MPH), or kilometres per hour (KPH) are time travelled by the car over a measured distance.
In nautical miles per hour for most purposes but in Mach number for supersonic flight.
Velocity is a vector, which means it has both size and direction. The size of a velocity is its speed, speed is measured in metres per second, faster speeds are measured in kilometres per hour. ; but the official base unit is metres per second.
The fastest recorded ball in the history of the World Cup was bowled by Pakistani batsman Shaoib Akhtar, who bowled the last ball of his second over against England, a maiden bowled towards England batsman Nick Knight, faster than any other ball in Test history. His recorded speeds of delivery, in kilometres per hour, were as follows: Ball 1: 153.3 kilometres per hour Ball 2: 158.4 kilometres per hour Ball 3: 158.5 kilometres per hour Ball 4: 157.4 kilometres per hour Ball 5: 159.5 kilometres per hour Ball 6: 161.3 kilometres per hour Shaoib had previously recorded a bowl of 161 kilometres per hour, in April 2010, but this was generally dismissed as equipment error.