本题目来源于试卷: Physics Unit7: Linear Momentum,类别为 通用国际物理
[单选题]
Two identical 1500-kg cars are movijz qmm8vlc*zmw5o am -*9*eab( el1 z2ng fzt65+8dm ,ad2l wppi 13/vjs:eqzyo 6yz(nl perpendicular to each other. One moves with a speed of 25 m/s due north and the other moves at 15 m/s due east. What is the total momentum of z p8la,ef(ozqlyvyzpd5 16/ +:tji w3md6n2sthe system?
A. $4.4 \times 10^{4} \; kg \cdot m/s$ at $31^{\circ}$ N of E
B. $4.4 \times 10^{4} \; kg \cdot m/s$ at $59^{\circ}$ N of E
C. $6.0 \times 10^{4} \; kg \cdot m/s$ at $31^{\circ}$ N of E
D. $6.0 \times 10^{4} \; kg \cdot m/s$ at $59^{\circ}$ N of E
参考答案: B
本题详细解析:
暂无
|