Kinematics (id: 9fad9fb56)

本题目来源于试卷: Kinematics，类别为 IB数学

[填空题]
The acceleration, $a \mathrm{~m} \mathrm{~s}^{-2}$ , of a particle at time t seconds is given by

$a=\frac{3}{t}+5 \cos 2 t, \text { for } t \geq 1$


The particle is at rest when t=1 .
Find the velocity of the particle when t=4 .   

参考答案: 4.36±2%


本题详细解析:

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