A 15 foot ladder is placed against a wall.Suppose the bottom of the ladder slides away from the wall at a constant rate of 3 ft.How fast is the top of the ladder sliding down the wall when the bottom is 9 feet from the wall?Answera.- 9/4 ft b.9/4 ft c.-4/9 ft d.None ...
A 6.5 m long ladder is placed against a wall such that its foot is at a distance of 2.5 m from the wall. Find the height of the wall where the top of the ladder touches it View Solution Exams IIT JEE NEET UP Board Bihar Board ...
There is a ladder ___ (lean) against the wall.相关知识点: 试题来源: 解析 leaning 题目要求填入动词"lean"的正确形式。句子结构为"There be + 名词 + 分词",分词作后置定语修饰名词"ladder"。根据语境,梯子是主动靠着的状态,应使用现在分词"leaning"。若用过去分词"leant"则表示被动,但这里梯子的状态是...
Road has a length =L It makes an angle etheta wilth the floor. The vertical wall has a height =h R2=mg-R1costheta……….1 R1sintheta=muR2…….2 R1costhetaxx(h/(tantheta)+R1sinthetaxxh =mgxxL/2costheta rarr R1=(mgxxL/2costheta)/({(cos^2t
The angle of elevation of a ladder leaning against a wall is60∘and the foot of the ladder is 9.5m away from the wall. Find the length of the ladder. View Solution A3malong ladder weighing20kgleans on a frictionless wall. Its feet rest on the floor1mfrom the wall. Find the rection ...
There is a ladder against the wall.有一架梯子靠在墙上。[精讲辨析]against是介词,意为“反对;和……交战(竞争、比赛);不利于;依靠着”,后接名词、代词或动名词作宾语。其反义词为for,意为“赞成;支持”。相关短语:play against与……打对抗赛。[活学活用]根据汉语意思翻译句子。1. 没人反对这个提议。No...
Answer to: A 20 foot ladder is leaning against a wall the base of the ladder is 7 feet away from the wall, how high up the wall will the ladder...
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.15 ...
1) stand a ladder against a wall 把梯子竖立在墙边2) Rest the ladder against the wall. 把梯子靠在墙上。 例句>> 3) The ladder rested on/against the wall. 梯子搁置在墙边。4) A ladder standing against the wall 竖靠在墙上的梯子5) The ladder stands against the wall. 梯子靠墙竖着。
評価の高い回答者語学を上達させる方法を知っていますか❓それは、自分で書いた文章を添削してもらうことです！HiNativeならAIとネイティブスピーカーの両方から添削してもらえます📝✨