問題詳情
2. Over a short interval near time t = 0 the coordinate of a bicycle in meters is given byx(t) = 12t – 4t3, where t is in seconds. At the end of 1 s, what is the acceleration of the bicycle?
(A) 23 m/s2
(B) 15 m/s2
(C) -4 m/s2
(D) -12 m/s2
(E) -24 m/s2
參考答案
答案：E
難度：計算中-1
書單：沒有書單，新增