Question

which of the following is not an si base unit? multiple choice kelvin meters per second squared second meter kilogram

Explanation:

SI base units are fundamental units (meter, kilogram, second, kelvin, etc.). Meters per second squared ($\text{m/s}^2$) is a derived unit (for acceleration), combining base units. Others (kelvin, second, meter, kilogram) are base units.

Answer:

B. meters per second squared