Asked by Danny
Is Gc (32.2 lbmft/lbfs^2) equal to gravity? I think it is, but I'm kinda confused about the whole concept. Could someone explain it to me? Thank you very much.
Answers
Answered by
Damon
In English units, the acceleration of gravity near the surface of earth is about 32 feet/second^2 = g
When we used those units, we defined mass in slugs.
mass in slugs m = weight in pounds/g = weight in pounds/32
Then we could use Newton's second law
F = m a
where force is in pounds, mass is in slugs and a is acceleration in feet/second^2
In Physics we use SCI metric units these days.
Force in Newtons = mass in kilograms * acceleration in meters/second^2
When we used those units, we defined mass in slugs.
mass in slugs m = weight in pounds/g = weight in pounds/32
Then we could use Newton's second law
F = m a
where force is in pounds, mass is in slugs and a is acceleration in feet/second^2
In Physics we use SCI metric units these days.
Force in Newtons = mass in kilograms * acceleration in meters/second^2
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