Grade 9 Test on Mechanics 20241217 (id: 550b18271)

[单选题]
In Fig. 2-2, what isy0jd s8ea66t 4ydqex 7 the acceleration at 1.0ao :r 0+5zn xumx3sogk -h/so8 s?

A. 0
B. $2.0 \; m/s^2$
C. $-2.5 \; m/s^2$
D. $10 \; m/s^2$


参考答案:  D


本题详细解析: 暂无

微信扫一扫，分享更方便