题库网 (tiku.one)

 找回密码
 立即注册

手机扫一扫,访问本页面

开启左侧

newnewnewnew (id: 99c607c31)

[复制链接]
admin 发表于 2024-10-10 22:49:29 | 显示全部楼层 |阅读模式
本题目来源于试卷: newnewnewnew,类别为 IB物理学

[问答题]
When you stand still on the ground, how la-.+cuzp wxk+9tlkwe : rge a fornhf/ ln4* +m;ldmp4sbce does the ground exert on you? Why doespm *b dn/l;4+ f4lsnhmn’t this force make you rise up into the air?




参考答案:
If you are at rest, the net force on you is zero.  Hence the ground exerts a force on you exactly equal to your weight.  The two forces acting on you sum to zero, and so you don’t accelerate.  If you squat down and then push with a larger force against the ground, the ground then pushes back on you with a larger force by Newton’s third law, and you can then rise into the air.


本题详细解析: 暂无

微信扫一扫,分享更方便

帖子地址: 

回复

使用道具 举报

您需要登录后才可以回帖 登录 | 立即注册

本版积分规则

浏览记录|使用帮助|手机版|切到手机版|题库网 (https://tiku.one)

GMT+8, 2024-11-7 11:28 , Processed in 0.038734 second(s), 28 queries , Redis On.

搜索
快速回复 返回顶部 返回列表