本题目来源于试卷: Physics Unit6: Work and Energy,类别为 通用国际物理
[单选题]
A 100-N force has a horizontuaw; ij/)q( acal component of 80 N and a v 0vl3qocca bi-0ijr2*7n os 0kertical component of 60 N. The force is applied to a box which rests on a level frictionless floor. The cart starts from rest, and moves 2.0 m horizontally along the floor. What is thc r*- i 0oqa3okbv2iclsjn700e cart's final kinetic energy?
A. $200 \; J$
B. $160 \; J$
C. $120 \; J$
D. zero
参考答案: B
本题详细解析:
暂无
|