meter and second
Meter per secondThere is no standard SI unit for velocity actually. It is a derived unit. Velocity is distance traveled per time together with the direction of motion. The SI unit of distance is the meter (m) and the SI unit of time is the second (s).So the units of velocity in SI units is meters/second (m/s), or ms-1See the Related Questions link to the left "What are all the SI units" for more information about SI units.CommentDerived units are SI units.
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Distance: Meters (or metres) Speed & velocity (meters per second). velocity also needs a direction but that isn't defined by SI units.
The SI unit for time is the second (s).
Derived units are simply more complex because they are made up of several (that is, usually, by more than one) base unit. It is just the way they are defined; for example, in the SI, distance and time are base units, while speed is a derived unit (distance / time). You can just as well invent a system of units where - for example - time and speed are base units; in this case, distance would be a derived unit.
The velocity is distance per unit time and the SI unit is m/s.
Meter per secondThere is no standard SI unit for velocity actually. It is a derived unit. Velocity is distance traveled per time together with the direction of motion. The SI unit of distance is the meter (m) and the SI unit of time is the second (s).So the units of velocity in SI units is meters/second (m/s), or ms-1See the Related Questions link to the left "What are all the SI units" for more information about SI units.CommentDerived units are SI units.
distance,time
In most of the world, everything that is measured, is measured in SI units. Time, distance, mass, weight, area, volume and so on.
llo
One formula for speed is:Speed = (distance covered) divided by (time to cover the distance).The SI unit of speed is meter/second.
Distance: Meters (or metres) Speed & velocity (meters per second). velocity also needs a direction but that isn't defined by SI units.
In the International System of Units (SI Units), time is measured in seconds.
The SI unit for time is the second (s).
The SI (International System of Units) unit for distance is the meter (m).
SI units are the units used globally to measure quantities. For example: -Time in seconds -Distance in metres -Velocity in metres per second Etcetera. This is because of the confusion that can occur when someone measures something in, say, feet, and the other in metres.
For Physics, we typically use the SI system. Some of its units are the meter(for distance), gram(for mass), joule(for energy), newton(for force), and the second(for time).