Video: Yuav ua li cas koj hloov ceev mus rau acceleration graph?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Yog tias daim duab yog nrawm vs lub sijhawm, tom qab ntawd nrhiav thaj chaw yuav muab koj hloov chaw, vim nrawm = hloov chaw / sijhawm. Yog tias daim duab yog kev ceev vs sij hawm, ces nrhiav qhov chaw muab rau koj hloov hauv nrawm , vim kev ceev = hloov hauv nrawm / sijhawm.
Ua raws li qhov no hauv kev xav, ua li cas koj pom qhov nrawm ntawm acceleration?
Siv tus qauv los nrhiav kev ceev . Ua ntej sau koj qhov sib npaug thiab tag nrho cov kev hloov pauv tau muab. Qhov sib npaug yog a = Δv / Δt = (vf -vi)/(tf -ti). Tshem tawm qhov pib nrawm los ntawm qhov kawg nrawm , ces faib qhov tshwm sim los ntawm lub sij hawm luv luv. Qhov kawg tshwm sim yog koj qhov nruab nrab kev ceev dhau lub sijhawm ntawd.
Ib yam li ntawd, qhov kev tshaj tawm tsis zoo txhais li cas? Kom paub qhov txawv ntawm ob qho kev qhia hauv nrawm , koj ua tau muaj qhov zoo thiab a tsis zoo vectors: vectors uas taw tes nyob rau hauv opposite direction. Yog li ntawd, a negative velocity txhais tau tias tias qhov taw qhia ntawd nrawm yog opposite rau lwm tus nrawm (nrog tus nqi zoo).
Hais txog qhov no, tus qauv ntawm kev tshaj tawm yog dab tsi?
Velocity Formula . Cov nrawm yog lub sij hawm tus nqi hloov pauv. Yog tias 'S' yog qhov hloov chaw ntawm ib qho khoom hauv qee lub sijhawm 'T', ces qhov nrawm yog sib npaug, v = S/T. Cov units ntawm nrawm yog m/s los yog km/hr.
Yuav ua li cas acceleration zoo li ntawm ib daim duab?
Thaum twg kev ceev yog tas li , cov kev ceev -lub sij hawm nkhaus yog kab rov tav. Tus nqi hloov ntawm kev ceev nrog lub sij hawm yog ib qho tsis muaj nuj nqis kom muaj nqes ntawm txoj kab nkhaus ntawm qhov no daim duab kuj tsis muaj qab hau. Thaum ob lub nkhaus sib npaug, ob qho khoom muaj tib yam kev ceev thaum ntawd.
Pom zoo:
Yuav ceev npaum li cas kev lom zem mus ncig mus?
CPSC cov lus qhia hais tias kev nyab xeeb thiab kev nyab xeeb-mus-ncig yuav tsum tsis txhob tshaj qhov kev sib hloov ceev ntawm 13 ko taw ib ob
Yuav ua li cas koj ntsuas qhov ceev thiab acceleration?
Lub hauv paus ntsiab lus yog tias txoj kab nqes ntawm txoj kab ntawm qhov nrawm-lub sij hawm teeb qhia qhia cov ntaub ntawv tseem ceeb txog kev nrawm ntawm cov khoom. Yog tias qhov acceleration yog xoom, ces txoj kab nqes yog xoom (piv txwv li, kab rov tav). Yog hais tias qhov acceleration yog qhov zoo, ces txoj kab nqes yog qhov zoo (piv txwv li, txoj kab nqes nqes)
Thaum koj pov pob ncaj qha mus rau pem hauv ntej Yuav ua li cas muaj tseeb txog nws acceleration?
Koj pov lub pob ncaj nraim, yog li ntawm nws txoj kev nce, nws cov kev taw qhia tseem nce. Txawm li cas los xij, lub pob qeeb qeeb, yog li nws qhov nrawm qis. Nyob rau sab saum toj ntawm lub pob txav, nws qhov ceev yog xoom. Nyob rau sab saum toj ntawm lub pob lub zog, nws tseem cuam tshuam los ntawm lub ntiajteb txawj nqus, yog li nws tseem muaj qhov nrawm vim lub ntiajteb txawj nqus: 9.8 m / s2
Yuav ua li cas koj nrhiav tau ceev nrog acceleration thiab lub sij hawm?
Yog hais tias lub acceleration yog tas li, ces acceleration = hloov nyob rau hauv ceev / sij hawm rau qhov kev hloov. Yog li qhov kev hloov ntawm qhov nrawm yog qhov accelerationtimes lub sijhawm. Koj tseem yuav tsum paub qhov pib nrawm uas koj ntxiv rau qhov kev hloov pauv. (Yog tias acceleration tsis tas li koj xav tau kev suav.)
Yuav ua li cas koj nrhiav tau acceleration ntawm ceev?
Kev suav acceleration suav nrog kev faib nrawm los ntawm lub sijhawm - lossis hauv cov ntsiab lus ntawm SI units, faib cov ntsuas ib ntus [m / s] los ntawm qhov thib ob [s]. Kev faib nrug los ntawm lub sij hawm ob zaug yog tib yam li kev faib nrug los ntawm lub square ntawm lub sij hawm.Yog li lub SI unit ntawm acceleration yog tus ' meter ' ib secondsquared