Question

Why is the speed of the earths plate measured in centimeter per year instead of in meter per second?

Answer 1

Just to get a more convenient number.

  1 centimeter per year is the same as 0.000000000317 meter per second.

Measured in centimeters per year, you get a number that's much easier
to write down, remember, and tell other people about.

Exactly the same reason that we describe the speed of a snail in
feet per minute, not miles per hour.

Answer 2

The speed of the earth plate is measured in cm/yr because it is convenient to read, write, and remember.

Speed of the earth plate:

• The speed of the earth plate is very slow, about  0.60 cm/yr to 10 cm/yr.

• This scientist measure this value in m/s the number will be huge.

• The huge number is inconvenient to write and remember.

Therefore, the speed of the earth plate is measured in cm/yr.

Learn more about units of measurement:

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