Kinematics (id: 9c8835f86)

本题目来源于试卷: Kinematics，类别为 IB数学

[填空题]
The displacement, s;8 ypbgw7zf 6/pd29e/dzqksr , i5pnj7 /v4 lw9n (pwm(q1nobrhn metres, of a particle t seconds after it passes through the origin 5j(n(71qnn4 wrp pwv9 /blhmo is given by the expression $ s=\ln \left(3+t-2 e^{-t}\right), t \geq 0$ .
1. Find an expression for the velocity, v , of the particle at time t .   
2. Find an expression for the acceleration, a , of the particle at time t .   
3. Find the acceleration of the particle at time t=0 .   

参考答案:
空格1: (1+2*e^(-t))/(3+t-2*e^(-t))  空格2: -(1+(10+2*t)*e^(-t))/(3+t-2*e^(-t))^2  空格3: -11±2% 


本题详细解析:

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