跳起摸高是运动员经常做的一项活动,已知某运动员的身高为1.8m,

跳起摸高是运动员经常做的一项活动,已知某运动员的身高为1.8m,质量为65kg,站立时举手的高度为2.2m,他用力蹬地,经过0.5s竖直离地跳起,设他蹬地的力大小恒为1060N,则理论上他跳起可以摸到的高度为________.(g取10m/s2

答案


2.69m
【试题分析】

相关题目

如图所示为电流与电压的关系图像由此可以判断( ) A.R甲
如图所示为电流与电压的关系图像由此可以判断( ) A.R甲=R乙         B.R甲<R乙   C.R甲>R乙         D.无法比较
Nick Petrels is a doctor in Montreal. He works 60 hours a week. He takes care of
Nick Petrels is a doctor in Montreal. He works 60 hours a week. He takes care of 159 patients a week in the hospital and at his office. He’s been a doctor for ten years. Dr. Petrels gives his patien
When my first wartime Christmas came, I was in basic training in New Jersey and
When my first wartime Christmas came, I was in basic training in New Jersey and not sure if I would make it home for the holidays. Only on the afternoon of December 23 was the list of men who would ha
已知某几何体的直观图和三视图如下图所示,其正视图为矩
已知某几何体的直观图和三视图如下图所示,其正视图为矩形,侧视图为等腰直角三角形,俯视图为直角梯形. (I)求证:平面;     (II)求证:
【2016·山东省青岛卷】 阅读下面的文字,给加点字注音;根
【2016·山东省青岛卷】 阅读下面的文字,给加点字注音;根据拼音在田字格中正确、规范、美观地填写汉字。 (1)设计者和匠师们讲究亭台轩榭的布
沧海月明珠有泪,                 。
沧海月明珠有泪,                 。
   One of the most interesting places in Beijing____the foreigners want to vis
   One of the most interesting places in Beijing____the foreigners want to visit is the Great Wall. A.which   B.that   C.what  D.where
如图所示,木板可绕固定的水平轴O转动,木板从水平位置OA
如图所示,木板可绕固定的水平轴O转动,木板从水平位置OA缓慢转到OB位置的过程中,木板上重为5N的物块始终相对于木板静止,在这一过程中,物块的

最新题目