3)An automobile starts from rest and accelerates to a final velocity in two stages along a straight road.Each stage occu
3)An automobile starts from rest and accelerates to a final velocity in two stages along a straight road.Each stage occupies the same amount of time.In stage1,the magnitude of the car's acceleration is 3.0m/s^2.The magnitude of the car's velocity at the end of stage2 is 2.5 times greater than it is at the end of stage 1.Find the magnitude of the acceleration in stage 2.
英語人氣：214 ℃時間：2020-04-20 07:21:23
優(yōu)質(zhì)解答
一部汽車從靜止開始分兩階段沿一條直路開始加速到一個最終速度.每階段占相同時間.第一階段, 汽車的加速度的大小是3.0m/s^2.第二階段末時汽車的速度是第一階段末時的2.5倍.求第二階段時汽車的加速度的大小.解:第一階...
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