如图所示,水平平台AB距地面CD高h=0.80m,有一小滑块从A点以6.0m/s的初速

如图所示,水平平台AB距地面CDh=0.80m,有一小滑块从A点以6.0m/s的初速度在平台上做匀变速直线运动,并从平台边缘的B点水平飞出,最后落在地面上的D,已知AB=2.20m,落地点到平台的水平距离为2.00m,(不计空气阻力,g10m/s2)

:1)小滑块从AD所用的时间

2)滑块与平台间的动摩擦因数.

                                             

答案

       

相关题目

日本人的传统服装是(    ) A.中山服                
日本人的传统服装是(    ) A.中山服                            B.和服 C.西服                              D.旗袍
右图表示人体一个细胞分裂时,细胞核中染色体数(有阴影
右图表示人体一个细胞分裂时,细胞核中染色体数(有阴影)和DNA分子数(无阴影)在Ⅰ、Ⅱ、Ⅲ、Ⅳ四个时期的统计数据。则可能含有同源染色体的
右图是云室中某粒子穿过铅板前后的轨迹,室内匀强磁场的
右图是云室中某粒子穿过铅板前后的轨迹,室内匀强磁场的方向与轨迹所在平面垂直(图中垂直纸面向里),铅板上有标度,由此可知此粒子(    )A
 单项填空 Make a of the things you need to buy before shopping and that wi
 单项填空 Make a of the things you need to buy before shopping and that will save money as well as time.         A. number          B. list        C. photo     D. p
His poor _____ English prevented him _____. A. spoken; from understanding   
His poor _____ English prevented him _____. A. spoken; from understanding     B. spoken; from being understood C. speaking; from understanding   D. speaking; from being understood
美国“宪法之父”麦迪逊说,全国政府“应当在一切案件中
美国“宪法之父”麦迪逊说,全国政府“应当在一切案件中对各州的法律享有否决权,正如同英国国王在此之前所做的那样。我认为这是十分基本的一
She was a four-year-old girl with very fine golden hair when I first met her. Sh
She was a four-year-old girl with very fine golden hair when I first met her. She was carrying a bowl of soup. I was 29 at that time and   11   from the flu.    Her mom and I had been friends fo
已知集合P={1,2},那么满足QP的集合Q的个数是(    )A.4      
已知集合P={1,2},那么满足QP的集合Q的个数是(    )A.4                     B.3                    C.2                    D.1

最新题目