[討論] 這樣的車速與重力加速度的問題,能解嗎?已回收
路上有1,2,3,4車同向前進,突然第1車緊急煞車,
第2車及第3車見狀也緊急停住,所以1,2,3車都停住了沒有同向撞到
但是此時第4車煞車不及,試問,第4車時速至少要多快,
才能同向撞到第3台車,讓靜止的第3台車去撞到靜止的第2台車,
靜止的第2台車又去撞到靜止的第1台車?
同樣情況條件下,試問1,2,3,4車同向前進,四台車的車速都在30-40公里之間。
第4車在車速30公里的情況下,可以連撞到幾台車?
車子的資料如下:
第1車 車長4844mm 車重1640kg
第2車 車長4355mm 車重1640kg
第3車 車長4410mm 車重1050kg
第4車 車長4530mm
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