gc textbook chapter 7 Linear Momentum (id: 69389e324)

本题目来源于试卷: gc textbook chapter 7 Linear Momentum，类别为 通用国际物理

[填空题]
A 95-kg halfback movf7 8wmhox g: 3xly;7qsvv:x;a/ k *uf7aops9; nchux1kfq,v ;ing at $4.1 \; m/s$ on an apparent breakaway for a touchdown is tackled from behind. When he was tackled by an 85-kg cornerback running at $5.5 \; m/s$ in the same direction, what was their mutual speed immediately after the tackle?    $m/s$

参考答案: 4.8±2%


本题详细解析:

微信扫一扫，分享更方便