設(shè)質(zhì)點(diǎn)M沿x軸直線運(yùn)動(dòng),在時(shí)刻t(s),質(zhì)點(diǎn)所在的位置為x=t^2-3t+6(m).質(zhì)點(diǎn)M在時(shí)刻t0(s)的瞬時(shí)速度等于...

設(shè)質(zhì)點(diǎn)M沿x軸直線運(yùn)動(dòng),在時(shí)刻t(s),質(zhì)點(diǎn)所在的位置為x=t^2-3t+6(m).質(zhì)點(diǎn)M在時(shí)刻t0(s)的瞬時(shí)速度等于...
設(shè)質(zhì)點(diǎn)M沿x軸直線運(yùn)動(dòng),在時(shí)刻t(s),質(zhì)點(diǎn)所在的位置為x=t^2-3t+6(m).質(zhì)點(diǎn)M在時(shí)刻t0(s)的瞬時(shí)速度等于從1s到3s這段時(shí)間內(nèi)質(zhì)點(diǎn)M運(yùn)動(dòng)的平均速度,求時(shí)刻t0(s).

物理人氣：706 ℃時(shí)間：2019-08-31 08:19:23

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