Space Time & Motion A.4 Rotational Mechanics (id: 65df7a55f)

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]
A disc of mass m and radius r rolls without slipkn :d 42 xmo;lu8nz+zhcjod6 lk.* 8vsping from resxll,fz . 34 yr;d0ukket down an inclined plane. ef.;,4 x lk d0lzur3yk

The moment of inertia of the disc is $frac{1}{2}​mr^2$.
Which of the following is correct about the linear acceleration of the disc and the net torque?

A. Linear Acceleration is $\frac{2}{3}$gsinθ ; Net Torque is $F_f​r$
B. Linear Acceleration is $\frac{2}{3}$gsinθ ; Net Torque is $mgsinθ$
C. Linear Acceleration is $gsinθ$ ; Net Torque is $F_f​r$
D. Linear Acceleration is $gsinθ$ ; Net Torque is $mgsinθ$


参考答案:  A


本题详细解析:

微信扫一扫，分享更方便