Kev hloov pauv ntawm Pounds-mass (lbm) thiab Pounds-force (lbf) 1. Siv Newton's 2nd Law (F=ma) kom pom qhov hnyav hauv lbm∙ft/s2. 2 2. Hloov qhov hnyav ntawm lbm∙ft/s2 rau lbf siv kev sib raug zoo 1 lbf=32.174 lbm∙ft/s2.
Puas 1 LBM sib npaug 1 lbf?
lbm sawv cev rau qhov hnyav uas hnyav ib phaus-lub zog (lbf) hauv ntiaj teb. Nws tsis yog tsim nyog hais tias ib tug lbm yog sib npaug rau ib lbfvim lub qub yog ib chav tsev loj thiab tom kawg yog ib chav tsev. Txawm li cas los xij, nws yog qhov tsim nyog hais tias ib lbm hnyav ib lbf (hauv ntiaj teb). … Qhov tseeb, ib tug slug yog 32.174 lbm.
Puas yog lbf tib yam li phaus ntiv tes?
lb yog ib chav tsev loj, yog li nti-lb tsis yog lub zog. Tej zaum lawv txhais tau tias nti-lbf, qhov twg 1 lbf yog qhov hnyav ntawm 1 lb pawg. Yog li ntawd, tsuas yog hloov lb nrog lbf yam tsis hloov tus lej.
Kev hloov pauv kom raug rau 1 lb yog dab tsi?
Ib phaus txhais tau tias yog ib chav tsev ntawm qhov hnyav / hnyav sib npaug rau 16 ooj, lossis 0.45359237 kilograms. Ib phaus yog sib npaug rau 7,000 nplej nyob rau hauv avoirdupois los yog apothecaries 'system.
Vim li cas phaus luv lb?
Lo lus "pound" los ntawm Roman thaum ub thaum chav ntsuas yog libra podo, uas txhais tau tias "ib phaus los ntawm qhov hnyav." Lo lus Askiv "pound" kos los ntawm podo ib feem ntawm kab lus, raws li BBC. Txawm li cas los xij, abbreviation "lb" yog muab los ntawm libra ib feem ntawm lo lus
