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by HPsquared
876 days ago
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It's still 145 lbf and 145 lb mass. Under Earth's gravity the numbers are identical. (That is, a mass of 1 lb has a weight of 1 lbf). The 10x difference comes in with metric units (kg and N). Edit: might as well mention the rocketry connection... Probably the most well-known use of pounds-force is when discussing thrust of rocket engines (and other means of jet propulsion). |
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