gc textbook chapter 8 Rotational Motion (id: dc753f418)

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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 potter is shaping a bowl on a potter’s whg0fcg8:tf)+shan s. veel rotat:xc)g j om2 djnibr56s y0b9;ging at constant angular speed (Fig. 8–42). The frg6 )nsr mjycxbo59g: 0;jid2biction force between her hands and the clay is 1.5 N total.
(a) How large is her torque on the wheel, if the diameter of the bowl is 12 cm?    $m \cdot N$
(b) How long would it take for the potter’s wheel to stop if the only torque acting on it is due to the potter’s hand? The initial angular velocity of the wheel is 1.6 rev/s, and the moment of inertia of the wheel and the bowl is 0.11 $kg \cdot m^2$.    s

参考答案:
空格1: 0.09±2%  空格2: 12±2% 


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