本题目来源于试卷: Impulse and momentum，类别为 美国物理杯赛(Physics Bowl)
[单选题]
98.26: A ball with a mass of 0.5:aj.-v t8: 0e ve4x) qtmaptet0 kg and:h jmh6(/: (l8binn h1e xckm*qcgs(v a speed of 6.0 m/s collides perpendicularly with a wall and bounces off with a speed of 4.0 m/s in the opposite direction. What is the magnitudebh1 e( 8/v:jm s(nhkc 6:l*n (icxhgmq of the impulse acting on the ball?
A. 13 J
B. 1.0 N s
C. 5.0 N s
D. 2.0 m/s
E. 10 m/s
参考答案: C
本题详细解析:
暂无
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