The problem of a ladder leaning against a wall in static equilibrium is a classic example encountered in introductory mechanics texts.1 Most discussions of this problem assume that the static frictional torce between the ladder and wall can be ignored. A few authors~(2'3) consider the case ...
A ladder is leaning against a wall. The angle between the ladder and the ground is 60 degrees. If the length of the ladder is 6 meters, how far is the bottom of the ladder from the wall? A. 3 meters B. 3√3 meters C. 6 meters D. 6√3 meters 相关知识点: 试题来源: 解析...
百度试题 结果1 题目62. Would you please put the ladder against_ (紧 ) the wall? 相关知识点: 试题来源: 解析 答案见上【详解】句意:你能把梯子紧靠在墙上吗?根据括号中文提示,介词against表示“紧靠”。故填against。 反馈 收藏
题目Why not put the ladder against the wall? (紧靠) 相关知识点: 试题来源: 解析 紧靠against,介词;根据句意"为什么不把梯子靠在墙上呢"和语法可知,要用介词短语against the wall作状语.故答案为:against. 为什么不把梯子靠在墙上呢?反馈 收藏
解答 答案:against. 根据所给汉语提示结合语境推测句意是"那个梯子紧靠着墙,小偷很容易进入房内.",此处根据设空处前面的动词stood判断填介词,"紧靠"的英文单词是against,所以答案是:against 点评 做这类题型,首先根据所给汉语明确句子所要考查的单词或短语的拼写,再结合相关语法知识对单词或短语做出形式上的变化. ...
This problem has been solved! You'll get a detailed solution from a subject matter expert that helps you learn core concepts.See Answer Question: 9. A ladder is propped against a wall so that the angle the ladder makes with the wall is 45...
结果1 题目 A 4 m ladder leans against a wall. The foot of the ladder makes an angle of 63° with the ground. How far up the wall does the ladder reach?() A.1.8 m B. 3.6 m C.4.5 m D. 7.9 m 相关知识点: 试题来源: 解析 B 反馈 收藏 ...
ladder is leaning against a wall . Its base is 16m from the wall. How many meters up the wall does the ladder reach ?( ). A. 24B. 26C. 28D. 30相关知识点: 试题来源: 解析 D Use the Pythagorean Theorem: 342−162=1156−256=900; the ladder reaches√900m=30m up the wall. ...
A ladder 25 feet long is leaning against a wall that is perpendicular to level ground. The bottom of the ladder is 7 feet from the base of the wall. If the top of the ladder slips down 4 feet, how many feet will the bottom of the ladder slip ?() A. 4 B. 5 C. 8 D. 9 E...
10 Fig. 10.1 shows a uniform ladder leaning against a wall. The bottom of the ladder is1.0 m away from the wall. The top of the ladder is 4.0 m above the ground. F -ladder4.0m NOT TO SCALE-wall man1.0m pivot Fig. 10.1The weight of the ladder is 110 N.(a) On Fig. 10.1, dr...