Question

What units would be used to describe the surface gravity of Mars?

Answer 1

That depends if we're talking about the acceleration due to gravity or the force of gravity on an object. Acceleration is \[m/s^2\] or meters per second squared, or meters per second per second. The force of gravity on an object would be measured in Newtons which would be \[m*kg/s^2\] (meter-kilograms per second squared) due to Newton's Second Law \[F=ma\]

Answer 2

the units can be any you choose - maybe Martians have a unit of length called Blurbs, a unit of time called marsecs and a unit of mass called blobs

Accleration has DIMENSIONS = Length/time^2

so Martians would use UNITS of Blurb marsec^-2

Force has DIMENSIONS = Mass * Length / Time^2

So Martians would measure force in UNITS of Blob Blurb Marsec^-2


UNITS are artificial and arbitrary. Dimensions are a fundamental description of the parameter

Answer 3

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Answer 4

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