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

Typical Forces (id: 3d083604f)

[复制链接]
admin 发表于 2024-7-28 21:00:49 | 显示全部楼层 |阅读模式
本题目来源于试卷: Typical Forces,类别为 美国物理杯赛(Physics Bowl)

[单选题]
16.10: A person wishes to ac*gf5ie5o*jvd z24cbkhom g -7celerate an object upward uniformly. Which on,uf o 6mzmz9q65f )rqqe of the following choices must be true of the force F, provided by the person onto the objez,rfmfuqz)5m 66qoq9 ct? W represents the magnitude of the gravitational force acting on the object. Ignore any effects of the air or of the Earth’srotation.

A. $F $= W
B. $F$ ≥ W
C. $F$ > W
D. $F$ ≥ 2W
E. $F $> 2W


参考答案:  C


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, 2024-12-26 04:17 , Processed in 0.051083 second(s), 28 queries , Redis On.

搜索
快速回复 返回顶部 返回列表