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]
05.13: A bat striking a 0.125 kg-basebal9v1h8 ,om /6*5o uoc2.w-nryvs x;joswtyerpl is inc* td qm(-uuec/2c-js y0o.f;4gz exu contact with the ball for a time of 0.03 seconds. The ball travels in a straight line as it approaches and then leaves the bat. If the ball arrives at the bat with a velocity of 4.5 m/s and leaves with a velocity of-6.5 m/s, what is the magnitudeuts/e c 40*gm.dcx(c e u2u;f-yj-oz q of the average force acting on the ball?
A. 8.33 N
B. 18.75 N
C. 27.08 N
D. 45.83 N
E. 458 N
参考答案: D
本题详细解析:
暂无
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