本题目来源于试卷: Rotational Dynamics，类别为 美国物理杯赛(Physics Bowl)
[单选题]
14.49: A solid, uniform disk of mass M and r (ilr b :i9fs+umz4:8v/tqn/sk zcws9 adius R rotates clockwise about 4a +lf7 )k h- x, 4gm7td.gyyycbkcye0its center .07g c4y,hx my tc)ey+klb -yag dfk74 with an angular speed $ω_0$ . The disk then is placed onto a horizontal surface and begins moving only to the right, slipping as it rolls. The coefficient of friction between the floor and the disk is μ and the
frictional force is considered constant throughout the motion. What is the angular speed of the disk when the disk starts rolling without slipping?
A. $\frac{1}{2}μw_0$
B. $\frac{1}{2}w_0$
C. $\frac{1}{3}w_0$
D. $\frac{2}{3}μw_0$
E. $\frac{2}{5}w_0$
参考答案: C
本题详细解析:
暂无
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