阿摩線上測驗
2. Over a short interval near time t = 0 the coordinate of a bicycle in meters is given by
x(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
答案：登入後查看
統計： A(0), B(0), C(0), D(3), E(29) #2974165
統計： A(0), B(0), C(0), D(3), E(29) #2974165
