本题目来源于试卷: Physics Unit4: Force Dynamics & Newton's Laws，类别为 通用国际物理
[单选题]
An object slides on a level surface in the +x direction. It slow) y4wrutjhqi3a*5 n+a 50, ecw l5vjaxs and comes to avje ,5lx5 wc0a stop with a constant acceleration of -$2.45 \; m/s^2$. What is the coefficient of kinetic friction between the object and the floor?
A. 0.25
B. 0.50
C. 4.9
D. Impossible to determine without knowing the mass of the object.
参考答案: A
本题详细解析:
暂无
| 
