Tectonic plates are large segments of the Earth’s crust that move slowly. Suppose that one such plate has an average speed of 4.0 cm/year. (a) What distance does it move in 1 s at this speed? (b) What is its speed in kilometers per million years?
This question involves conversion of the given units to the required units.
(a) Average speed of the plate
In 1 year, the plate moves
Therefore, in , the plate moves
So, in , the plate moves