Physics Unit4: Force Dynamics & Newton's Laws (id: 98144d79a)

本题目来源于试卷: Physics Unit4: Force Dynamics & Newton's Laws，类别为 国际高中通用物理

[单选题]
A horizontal force of 5.0 N accelera3+-scp uj w+,ksyy,ju tep.8lp3c z/.q 0gunqdd s a 4.0-kg mass, from rest, at a rate of $0.50 \; m/s^2$ in the positive direction. What friction force acts on the mass?

A. $2.0 \; N$
B. $3.0 \; N$
C. $4.0 \; N$
D. $5.0 \; N$


参考答案:  B


本题详细解析: 暂无

微信扫一扫，分享更方便