gc textbook chapter 8 Rotational Motion (id: 30ec1ae05)

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本题目来源于试卷: gc textbook chapter 8 Rotational Motion，类别为 unclassified

[填空题]
A 70-cm-diameter whe ;kea 9/cyff6cqov7(b8pi m 2mel accelerates uniformly about its center from 130 rpm to 280 rpi8p( omv2mbq7m in 4.0 s. Determine
(a) its angular acceleration,$\approx$    $rad/s^2$(Round to one decimal places)
(b) the radial and tangential components of the linear acceleration of a point on the edge of the wheel 2.0 s after it has started accelerating. $a_R$    $m/s^2$ $a_{tan}$    $m/s^2$

参考答案:
空格1: 3.9±2%  空格2: 1600±2%  空格3: 1.4±2% 


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