Quote:
Originally Posted by RoeeVulcan
Hi guys. I come from a team in Israel where we use the metric system. While working on a few engine and gear ratio math I noticed stall torque was in lb*in. I am used to work in N*m. This seemed weird since lb is weight and N is force. Obviously I can transform lb to kg and then multiply it by g but.. That dosn't sound right. Is there any other measurement refered to by lb? One to do with force maybe?
Also, does anyone have the engines table in metric?
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You are correct, lb is a unit commonly used for weight. However, it is actually just another unit for force just like N (Newtons). With the metric system, Newton's second law is commonly written out like this:
F=ma
(Newtons) = (kg) * (m/s^2)
In imperial units:
F=ma
(Pounds) = (slugs) * (ft/s^2)
As you can see, Pounds is analogous to Newtons. Kg is actually analogous to an uncommon unit
slugs, which is the actual imperial unit for mass, not pounds.
Its easy to get weight and mass confused
