题目

如图所示为“碰撞中的动量守恒”实验装置示意图．                                                        （1）入射小球1与被碰小球2直径相同，均为d，它们的质量相比较，应是                        m1                                                                                                                m2．          （2）不放小球2，让球1从滑槽的G点由静止滚下，平抛后落点为                    ．       （3）放上球2，让球1从滑槽的G点由静止滚下，碰撞后分别平抛，球1的落点为             ．球2的落点为         ．（4）看                                                                        和                            是否相等，以验证动量守恒．                                                                                                                                                                                                                        答案：（1）＞；（2）P；（3）M；N；（4）m1•OM+m2•（ON﹣）；m1•OP．

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