gc textbook chapter 7 Linear Momentum (id: ae7bf145e)

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 920-kg sports car collides into the rear e(gu o/9z1k)xebri7 mxnd of a 2300-kg SUV stopped+9 cqz1 cqqzs) at a red light. The bumpers lock, the brakes are locked, and the two cars skid forward 2.8 m before stopping. The police officer, knowing that the coefficient of kinetic friction between tires and road is 0.80, calculates the speed of the sports car at impact. What 9+qz1) qsqcc zwas that speed?(Let A represent the sports car, and B represent the SUV) $\approx$    m/s

参考答案: 23±2%


本题详细解析:

微信扫一扫，分享更方便