The mass of the penny can be measured in any unit, metric or 'customary'.
But when it comes time to write it down, remember it, or describe it to others,
the unit most convenient for any of those purposes is probably the 'gram'.
You can use any unit of mass you like.
The SI unit for measuring mass is Kg.
In this case I would suggest grams or ounces as they would give the least amount of zeros relative to a decimal point.
An UK penny has a mass of 3,56 g.
So the best unit for 10 pennies is gram.
The mass of ten pennies is about 25 with one penny weighin 2.5 grams.
Ther most convenient number results from expressing
that kind of mass in terms of grams.
Well, the international unit of mass is the kilogram, but it is perfectly acceptable to use smaller units, such as grams or milligrams, in this case.
Grams, unless you want high accuracy.
I suggest grams.
31.57g.
Grammes (g)
The metric unit for mass is the kilogram. For smaller masses, as in this case, you may also use grams or milligrams.
The international (SI) unit for mass is the kilogram.
The appropriate unit is grams.
meter * * * * * A metre to measure length. I suppose the person who answered that has a mass of 10 feet! The best units for the mass of a pencil eraser are gram or milligram.
Newton (N)
grams
Meters
The international (SI) unit of mass is the kilogram.
Do to its size, the mass of a peanut would probably best be measured in grams.
The same unit as you use to measure any mass. The SI unit for mass is the kilogram.
kilograms or lbs
The metric unit for mass is the kilogram. For smaller masses, as in this case, you may also use grams or milligrams.
KILOGRAM IS THE BASE UNIT FOR MASS yards are the best unit for math
The standard unit to measure mass is kilograms.
That depends what you want to measure: its height, its mass, its color, its temperature, etc.
kg. (kilograms), or tons (thousands of kg.).
The official SI unit for mass is the kilogram.