Unless specifically stated by a sign, the speed limits for cars are:
Motorway: 70 MPH
Dual Carriageway: 70 MPH
Single Carriageway: 60 MPH
Built up areas: 30 MPH (in towns, villages etc)
Other vehicle types such as trucks and buses have their own speed limits.
The speed limit doesn't change, but you are expected to make a reasonable adjustment to your speed to compensate for the conditions. So basically, as fast as you can go at or below the speed limit without getting into a wreck.
The safest maximum speed for that road
The fastest vehicle.
It depends on conditions. It has a high speed in Metals with high temperature.
The human speed limit has not yet been identified but one way to be sure is to calculate the energy muscle can provide for our legs. For example, in a 100m race, the amount of kinetic energy can be calculated. Usain Bolt's kinetic energy for the world record is about 369.56J. So, in order the know the max limit of human speed ,just get the max energy our body can provide at an instance.
The first speed limit was passed in England in 1865, setting a limit of 10 miles per hour on trains operating in the country. The first speed limit on automobiles also comes from England; in 1896, a limit of 14 miles per hour was set on what was called at the time "light locomotives". Local governments were given discretion to lower the limit to 12 miles per hour in their towns.
826 limit
speed limit is 34mph no speeding once a week
the posted speed limit
When another speed limit sign is reached that changes the limit from the previously posted one.
The speed limit is exactly that - the speed limit. While a reasonable excess of speed might be overlooked when overtaking another vehicle, there is no guarantee. You can be pulled over and cited for speeding, still.
The posted speed limit is the max speed.
In the UK the speed limit comes into force as soon as you pass the speed limit sign. As such the distance is zero as you should have slowed down to the posted speed limit before passing the sign.
The humps do not affect the speed limit. The speed limit is determined by other rules and signs.
The speed limit in built-up areas is 30mph, unless signs show otherwise.
The speed limit is 55mph.
Whatever the posted speed limit is.