Wannan karatu da kinematics? Concepts girma da kuma aiki

Wannan karatu da kinematics? Tare da wannan tambaya kusan nan da nan da fuskantar da dalibai bakwai sa, kawai daga nazarin kimiyyar lissafi. Yau muna magana game da gaskiyar cewa nazarin kinematics na wanda Concepts a shi ne mafi muhimmanci. Ka yi la'akari da lokuta da kuma kayan yau da kullum na wannan reshe na kimiyyar lissafi, za mu fahimci tare da abin da dabara shi za a iya amfani da lokacin da ya kamata a yi.

Abin da ake karatu makanikai, kinematics, kuzarin kawo cikas?

Da farko, bari mu yi, saboda haka yin magana, da gindaya line tsakanin wadannan uku Concepts. Makanikai ne daya daga cikin jiki partitions. A da shi za ka iya ce cewa ta an karatu da makanikai motsi jikin dokokin. Amma irin wannan ma'anar karatu zai iya samun sa'an nan, a lokacin da ta je masu kuzarin kawo cikas na kinematics.

Saboda haka abin da ke bambanci?

Bari mu yi kokarin fara aiki da su da cewa da karatunsa da kinematics da cewa wannan kimiyya ne. A gaskiya ma, kinematics ba ta kasance m. Shi ne fãce da makanikai sashe. All uku daga gare su: kinematics, kuzarin kawo cikas da kuma statics. Duk wadannan uku sassan ne daidai da inji Categories, watau nazarin hulda da jikinsu da kuma musamman su motsi. Duk da haka, kowace daga cikinsu yana da takamaiman halaye.

A tausasãwa na wadannan sassan

Kinematics ne mai yiwuwa mafi ban sha'awa sashe cikin sharuddan warware matsaloli. A babban iri-iri na combinatorial mafita da gaske babbar ikon yinsa, domin su shirya - shi duka ya zama mafificin dutsen gini a kan wanda ya kafa tushen da shahararsa ta kinematics. Af, ko da bude gwaje-gwaje a shirya domin jarrabawa a cikin 9th sa, mun kasance nan da nan iya yi tuntuɓe a kan sauki misalai. Cewa nazarin kinematics, za mu iya ambaci cewa shi ya ɗauki siffofin na motsi na jikinsu ba tare da shan la'akari da sojojin na interactions.

A kadan mafi rikitarwa shi ne yanayin da sashe na makanikai, masu kuzarin kawo cikas. Yana kuma ganin motsi na jikinsu da kuma m dabi'u bayyana. Wannan, misali, saurinka, tazara, lokaci. Amma akwai kuma wani adadin na ɓangare na uku sharuddan. Ga cikin sauki dokoki na motsi ba su samu kashe, shi wajibi ne don la'akari da wani inji tsarin, shan la'akari da sojojin aiki a kan wani musamman jiki. Amma nazarin da rikicewar ma'auni dokoki a inji tsarin. Akwai bayyana ba kawai jiki da kuma makamai da sauran abubuwa.

Mene ne dalilin da kinematics?

Saboda haka, za mu gano cewa, da kinematics karatu da motsi na jikinsu ba tare da game da sojojin aiki a kan abu aya. Amma abin da ya da tushen wannan sashe, makanikai, fãce da muhimman hakkokin dokokin? Concepts da ma'anar - shi ne haƙĩƙa kyau, amma a gaskiya daya ka'idar, ba za mu iya amfani da a warware matsalolin. A kalla sosai, don cimma wani sakamakon tabbatacce ko sakamako, za mu yi haquri, dabarbari. Kuma ka yi wannan, da farko bari mu magance dabi'u cewa su za a featured.

Babban yawa amfani a cikin kinematics matsaloli

Don fara, mun so mu tunatar da masu karatu cewa, ba za su yi wani matsanancin hali. Bari mu fara da wani sauki darajar wanda muka kira jerawa. Yana da wani scalar yawa. Watau ciwon kawai wani daraja. Mita uku, wanda birgima a ball. 25 mita cewa tanã gudãna dan wasa. Ten kilomita tafiya da wani mutum ga dukan yini. Duk da wannan - da lamba dabi'u na wanda muke kira jerawa.

A kadan daban-daban shi ne yanayin da gudun da kuma hanzari ne a cikin kinematics (da kuma a general) da dual yanayi. A daya hannun, za mu iya ba da wani lamba darajar da gudun. Bari ya zama biyar, goma, ashirin da mita da na biyu. Amma da gudu da kuma shugabanci ne. Yana daidai da shugabanci na motsi na jiki, yana da bayyane yake. Hakazalika, shi ne tare da hanzari. Duk da haka, da gudun da kuma hanzari iya directed a daban-daban kwatance. A wannan yanayin, jiki zai rage gudu. Tunanin cewa mota da aka kawai fara tafiya, tare da kowane biyu daukana up gudun. The gudu da hanzari a cikin shugabanci, inda gudun da jiki qara da kowane biyu. Amma lokacin da akwai wani deceleration na vector an directed a daban-daban kwatance.

Kinematics - wani sashe na makanikai da karatu da motsi na jikinsu. Amma abin da za a iya koya, idan ba mu yi amfani da wannan lokaci tazara? Ga shi ne - wani darajar amfani da su warware matsalolin da kuma bayyana cikin dokokin kimiyyar lissafi a cikin wannan sashe. Shi, tare da nesa, gudun da hanzari, an kunshe a wasu dabarbari, mafi yawan amfani ga tuki yanke shawara. Bari mu dubi wani fairly sauki aiki a kan wannan batu, to a karshe ƙarfafa a yi a baya a cikin labarin samu ka'idar.

aiki

Don tabbatar da halaye na mota ne ya zama ruwan dare da ɗari-mita dari na m hanya. An sani cewa ta hanzari ne daidai da mita biyar da biyu Squared. Gano yadda dogon da mota na iya tafi da nisa, shan la'akari da cewa da motsi ya fara ne daga sauran.

Saboda haka, tun da kinematics - wani reshe na makanikai da karatu da dokoki na motsi na jikinsu, za mu yi amfani da daidai dabarbari. A general, shi kama _{da wannan: S = V o T + (} -) (a ^ 2) / 2. Amma dole mu gudanar da ayyuka, mu canza nau'in. An ce, da motsi ya fara ne daga tsaya. Saboda haka, da farko gudu ne sifili. Saboda haka, da samfurin na gudun a lokacin V _o T ne sifili. Tun da mota accelerates, ga wani dabara peculiar alamar "+". A sakamakon haka, yana daukan wadannan nau'i: S = (a ^ 2) / 2.

Abu na gaba muna bayyana square daga cikin lokaci. Don yin wannan, mun ninka garesu daga wannan lissafi a kan deuce sake rubutawa da shi a wurin. Kuma yanzu raba sau biyu da nisa zuwa cikin hanzari. A karshe mataki zai zama don bayyana square tushen na magana. To, mun Sauki da dabara. Yanzu ta bayyana a matsayin: T = sqrt (2s / a). Yana kawai ya rage wa musanya lambobi. A sakamakon da muka samu cewa da mota ya wuce wani ba nesa ga wani lokaci daidaita game da 6,32 seconds.