About negative degree...?

Question

If any quantity of units (meter, kilogram, second, thing) to rise to the negative degree -1 what will change – value (quantitative characteristic) or units of measurement?

Answer 1

Actually, if I understand the question, it's done all the time.



Velocity can be measured in kilometers per hour, (kilometers/hour) can be written as (kilometers)(hours^(-1))



Acceleration is measured in meters/sec² or (meters)(sec^-2)



Energy, pressure, all that physics and engineering stuff use it all the time.



We do it in conversions too. You mentioned metric units. How about cm/in ((cim)(in^-1))?



Any unit of measurement that includes the word "per" between two other units of measurement would have a negative degree.

Answer 2

raising a unit to the -1 degree is like putting 1/unit

so, second to the -1 degree is "per second"

Answer 3

15 ft. sec^(-1) is equivalent to 15 ft. / sec or 15 feet per second.

None of these measurements is equivalent to 15 ft or to 15 sec.

15 ft / sec measures a speed, 15 ft. measures a length, and 15 sec. measures a period of time.