本题目来源于试卷: Differential Calculus，类别为 IB数学
[问答题]
The displacement, in centimeters, of a parpekcqr 7/yy1d9-j q 7aaq(9mwticle froumr4xp dc0 ;rhcc, n f:mv-x./m an origin, O , at time t seconds, is/.mcr 40-;nm,x:rvf x pduhcc given by $s(t)=t \sin 2 t-7 \sin t \cos t, 0 \leq t \leq 3$ .
1. Find the maximum distance of the particle from O .
2. Find the acceleration of the particle at the instant it changes direction for the the second time.
参考答案: 
本题详细解析:
暂无
| 
