Question

如图1所示为一次记录小车运动情况的纸带，图中A、B、C、D、E、F、G为相邻的计数点，相邻计数点的时间间隔T=0.1s．                                                                                                                              

（1）在如图2所示的坐标系中作出小车的vt图线．                                                    

（2）将图线延长与纵轴相交，交点的速度大小是                                         cm/s，此速度的物理意义是          ．

（3）小车的加速度大小是                                                                            ．           

                    

                                                                                                                                   

Answer 1

（1）见图（2）11.60　  表示A点的瞬时速度；（3）0.47