Physics Unit8: Rotational Motion (id: f3fc4fc7a)

[单选题]
A Ferris wheel rotating at 20 rad/s d4s m-sk :kv6kbecelerates with a consta ur /m vlrb4,w*v6v/qjnt angular acceleration b v uq,v*lr/jr/wm46 vof $-5.0 \; rad/s^2$. How many revolutions does it rotate before coming to rest?

A. 40
B. 20
C. 6.4
D. 3.2


参考答案:  C


本题详细解析: 暂无