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 ...
Problems in which a ladder is leaning against a wall making some angle; ex-1 The ladder is leaning against the wall makes an angle of 60 ^0 with the ground.
百度试题 结果1 题目【题目】 A 34m ladder is leaning against a wall. Its base is16m from the wall. How many meters up the wall does the ladder reach?( ). A.24 B.26 C.28 D.30 相关知识点: 试题来源: 解析 【解析】D 反馈 收藏 ...
An 18-foot ladder is leaned against a wall. If the base of the ladder is 8 feet from the wall, how high up on the wall will the ladder reach? A 104 foot ladder is leaned against a wall. If the base of the ladder i...
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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...
A ladder leaning against a wall has a slope of 7. how many feet in the horizontal direction correspond to a rise of 35 ft?Slope:The slope of a line is by how much the line is rising according to the run. If {eq}x {/eq} and ...
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...
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 ...
Discusses the statics of a ladder leaning against a rough wall in determining the reaction forces of a statically indeterminate structure. Difficulties in calculating reaction forces; Factors that determine the equation of equilibrium; Treatment of frictional force.Mendelson...