兩個(gè)互成角度的勻速直線運(yùn)動(dòng)的合運(yùn)動(dòng),一定是勻速直線運(yùn)動(dòng)
兩個(gè)互成角度的勻速直線運(yùn)動(dòng)的合運(yùn)動(dòng),一定是勻速直線運(yùn)動(dòng)
物理人氣：689 ℃時(shí)間：2020-06-06 03:59:17
優(yōu)質(zhì)解答
只要是勻速直線運(yùn)動(dòng),這個(gè)物體所受的合外力就為零,所以勻速直線運(yùn)動(dòng)的合成還是勻速直線運(yùn)動(dòng).只是運(yùn)動(dòng)方向會(huì)根據(jù)角度改變而改變~
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