Space Time & Motion A.4 Rotational Mechanics (id: b07075111)

本题目来源于试卷: Space Time & Motion A.4 Rotational Mechanics，类别为 IB物理学

[单选题]
The graph shows the variation of torque on an objec8 kekm8pyfcjj j6 v1f835qo)e t wi5yf8: 5g8t3lw43jpoy s zlkx ath time.



The moment of inertia is $0.25\,kgm^2$.
Assuming the object starts from rest, what is the final angular speed?

A. 8$rad\,s^{-1}$
B. 12$rad\,s^{-1}$
C. 20$rad\,s^{-1}$
D. 80$rad\,s^{-1}$


参考答案:  D


本题详细解析:

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