Speed.cs

using System;
 
namespace Waher.Script.Units.CompoundQuantities
{
    public class Speed : ICompoundQuantity
    {
        public Speed()
        {
        }
 
        public string Name => "Speed";
 
        public Unit Reference => reference;
 
        private static readonly Unit reference = new Unit(Prefix.None,
            new UnitFactor(new AtomicUnit("m"), 1), 
            new UnitFactor(new AtomicUnit("s"), -1));
 
        public Tuple<string, Prefix, UnitFactor[]>[] CompoundQuantities
        {
            get
            {
                return new Tuple<string, Prefix, UnitFactor[]>[]
                {
                    new Tuple<string, Prefix, UnitFactor[]>("mph", Prefix.None, 
                        new UnitFactor[]
                        {
                            new UnitFactor("SM"),
                            new UnitFactor("h", -1)
                        }),
                    new Tuple<string, Prefix, UnitFactor[]>("fps", Prefix.None,
                        new UnitFactor[]
                        {
                            new UnitFactor("ft"),
                            new UnitFactor("s", -1)
                        }),
                    new Tuple<string, Prefix, UnitFactor[]>("kph", Prefix.Kilo,
                        new UnitFactor[]
                        {
                            new UnitFactor("m"),
                            new UnitFactor("h", -1)
                        }),
                    new Tuple<string, Prefix, UnitFactor[]>("kmph", Prefix.Kilo,
                        new UnitFactor[]
                        {
                            new UnitFactor("m"),
                            new UnitFactor("h", -1)
                        })
                };
            }
        }
    }
}