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 driver, traveling at 220z 6n ,5:emhpedu2yb n m/s, slows down her 2000 kg car to stop for a red kvl4n,st+ys 7qpvie1 v2fs ) 4light. What work is done bysst,s ) v4qfe+v vpy2n k417il the friction force against the wheels?
A. $-2.2 \times 10^{4} \; J$
B. $-4.4 \times 10^{4} \; J$
C. $-4.84 \times 10^{5} \; J$
D. $-9.68 \times 10^{5} \; J$
参考答案: C
本题详细解析:
暂无
|