TEZShAVI

TEZShAVI, buzurgii fizikiest, ki tezii mikdoran va samtan tagyir yoftani vektori surati jismero ifoda mekunad. Hangomi harakati rostkhatta, vaqte surati jism muntazam ziyod (yo kam) meshavad, tezshavi adadan ba nisbati afzoishi surat ; bar fosilai vaqte barobar buvad, ki dar davomi on surat tagyir yoftaast: = / Tezshavi ba quvvai ba jism tasirkunanda mutanosibi rost, ba massai jiom mutanosibi chappa ast. Ba in mani tezshavi vektorest, ki samtash ba samti vektori quvva yak buvad. Dar mavridi harakati kajkhatta tezshavii jism ba hosili jami tezshavihoi rasanda va amudi (normali) barobar ast.