Thursday

January 19, 2017
Number of results: 70,363

**math**

How far from the wall must you place a ladder of length 12m. if the ladder is to touch a point 10m above the ground?

*November 25, 2016 by Dani*

**sciene**

A 4 meter long ladder weighing 25kg rest with its upper end against a smooth wall and lower end on rough ground. What should be the minimum coefficient of friction between the ground and the ladder for it to be inclined at 60 degree with the horizontal without slipping?

*May 4, 2016 by anil*

**WORD PROBLEM **

A roofer's 30 FOOT ladder is against the side of a house. It is 8 YARDS from the ground to the top of the house. How far away from the house must he place the foot of the ladder in order to have the top of the ladder meet the roof of the house?

*May 13, 2015 by Lin*

**mathematics**

1.a ladder 9.6m long leans against the wall at a point 9m above the ground. find the distance of the foot. 2.a vertical fence post as a shadow 1m long when the angle of elevation of the sun is 45o.find the height of the fence

*September 15, 2016 by Sofiat*

**math**

a 15 foot ladder is leaning against a house. The base of the ladder is 4 feet from the house. to the nearest tenth of a foot, how high does the top of the ladder reach?

*January 8, 2014 by mer*

**Geometry**

A 32-foot ladder leans against a building on level ground. It just reaches a window 25 feet above the ground. To the nearest degree, what angle does the ladder make with the ground.

*March 11, 2015 by Rolun*

**Math - Calculus**

A 13 foot ladder is sliding down a vertical wall at 1 ft/sec. How fast is the base of this ladder moving on a horizontal ground after 5 seconds?

*May 22, 2011 by Wes*

**MATH PLZ HELP!!!!**

Jorge plans to paint a bedroom wall that is shaped like a trapezoid. The bottom edge of the wall is 22.5 feet long, and the top edge of the wall is 9.5 feet long. If the wall is 8 feet tall, what is the area of the wall? • 256 ft2***** • 38 ft2 • 90 ft2 • 128 ft2

*February 8, 2016 by GoldenSparkleGirl*

**Physics**

A 90N dog climbs up a non-uniform (lambda = Cx^(3/2)), 100N ladder. The top of the ladder rests on the top of a frictionless fence that is 3m high and forms a 30 degree angle with the ground, which is rough and has a coefficient of friction of 0.60. How far up the ladder can ...

*November 27, 2012 by Min*

**6th grade**

If a ladder is on a house and the top is touching the house 8 feet above the ground, the bottom is touching the ground 6 feet away from the house, if you move the ladder in 1 foot how high will the ladder be touching the house.

*April 5, 2010 by sim*

**Physics Classical Mechanics**

A person of mass m2= 85.0 kg is standing on a rung, one third of the way up a ladder of length d= 4.0 m. The mass of the ladder is m1= 15.0 kg, uniformly distributed. The ladder is initially inclined at an angle θ= 40.0∘ with respect to the horizontal. Assume that ...

*December 12, 2013 by Robert*

**geometry**

a ladder is placed next to a building to get to the top. the bottom of the ladder is placed 7 feet away from the building at an angle of 56 degrees.how tall is the building?

*January 29, 2013 by jenna*

**math**

You have a 20-foot ladder that you are using as you paint your house. You place the ladder so that it forms an angle of 30 at the point of contact between the ladder and the ground. How high will the top of the ladder be above the ground? Please explain. thank you

*November 29, 2013 by lizziE*

**Physics**

Pls sir, kindly send the solution to my email. thanks. 1)A boat propelled so as to travelled with a speed of 0.50m/s in still water, moves directly ( in straight line ) across a river that is 60m wides. The river flow with a speed of 0.30m/s. How long in seconds does it take ...

*April 27, 2012 by Abbey*

**Right triangle (tri)**

ladder 13 feet long . if she set the base of the ladder on the level ground 5 feet from the side of a houes, how many feet above the ground will the top of the ladder be when it rest against the house?

*December 17, 2009 by pat*

**Right triangle (tri)**

ladder 13 feet long . if she set the base of the ladder on the level ground 5 feet from the side of a houes, how many feet above the ground will the top of the ladder be when it rest against the house?

*December 17, 2009 by pat*

**physics**

A 16m long ladder is mounted on a fire truck. The ladder itself has mass 130kg , and at the top is a 32kg basket holding a 83kg firefighter. If the ladder makes a 60 degrees angle with the horizontal, what's the magnitude of the net torque about the ladder's base?

*October 24, 2011 by Aleena*

**Geometry**

To repair a roof that is 4 meters high, Mr. Russo leans a 5-meter ladder against the side of the building. To reach the roof, how far away from the building should he place the base of the ladder?

*December 10, 2015 by K*

**martin Luther King High School**

ladder 13 feet long . if she set the base of the ladder on the level ground 5 feet from the side of a houes, how many feet above the ground will the top of the ladder be when it rest against the house?

*December 17, 2009 by pat*

**math**

if a ladder 15 meters long is placed so as to reach the bottom of a window 10 meters high, what distance on the ground does the ladder adjusted if it is placed on the top of a two meter square window and what is the new angle of elevation of the top of the window with respect ...

*September 13, 2015 by M*

**Math**

A 5.0m ladder is leaning 3.1m up the wall. What is the angle the ladder makes with the ground? Would this be..... sinA=3.1/5.0 sinA=0.62 sin^-1=38degrees?

*October 6, 2012 by Nikki*

**geometry**

how far from the wall should he place the ladder? If his ladder is 13 feet long and has to reach a 12 feet window.

*June 19, 2012 by rose*

**Geometry**

Larry has a ladder that is 16' long. If he sets the base of the ladder on level ground 5 feet from the side of the house, how many feet above the ground will the top of the ladder reach when it rests against the house?

*February 6, 2014 by Nena*

**physics-force**

A uniform ladder is 10 cm long and weights 400 N. It rests with ists upper end against a frictionless vertical wall. Its lower end rests on the ground and is prevented from slipping by a peg driven into the ground. The ladder makes a 30 degrees angle with the horizontal. The ...

*August 7, 2007 by Damon*

**Math**

Q1.A tree was chopped by the Samuels family for the holidays. How tall was the tree originally if the piece they chopped down was 7feet tall, and fell 4 feet from the stump? Q2. Mr pratt's rake is leaning up against a wall. If the top of the rake hits the wall 5 feet above the...

*January 24, 2015 by Daisy*

**maths**

a ladder 12 m long rests aganist a wall if it reaches the wall at a height of root 63m then find the angle of elevation

*January 8, 2016 by meena*

**Geometry**

Can some one PLEASE help me figure out how to solve this. Just a formula or hint would be helpful. Thank you!! A 10 ft. ladder is leaning against a building and makes an angle of 65 degrees with the ground. How high above the ground is the top of the ladder?

*April 20, 2011 by Anonymous*

**maths**

a ladder rests against a wall at an angle alpha to the horizontal its foot is pulled away from the wall through a distance a so it slides at bita making an angle bita with the horizontal show that a upon b=cos alpha-cos bita upon sin bita-sin alpha?

*January 9, 2012 by anurag*

**Trig**

A 12-foot ladder reaches 9 ft 6 in up a wall. How far up would a 20-foot ladder reach when placed at the same angle? Write the answer in feet with inches.

*January 17, 2013 by Kelly*

**functions**

john's paint crew knows from experience that its 18 ft ladder is particularly stable when the distance from the ground to the top of the ladder is 5 ft more than the distance from the building to the base of the ladder. in this position, how far up the building does the ladder...

*February 3, 2011 by alexa*

**math**

A board 5 feet long slides down a wall. At the instant the bottom end is 4 feet from the wall, the other end is moving down the wall at a rate of 2 feet per second. At the moment, how fast is the bottom end sliding along the ground?

*January 8, 2017 by Emily*

**natural science**

a fire fighter who weighs 800n climbs a uniform ladder and stops one third of the way up the ladder. the ladder is 5.0m long and weighs 180n. it rest against a vertical nail, making an angle of 53degree with the ground. find the normal and frictional forces on the ladder at ...

*October 10, 2015 by john lloyd*

** trigonometry**

To the nearest degree what is the angle formed with the ground by a 32 ft ladder if it is leaning against a wall at a height of 28 ft?

*May 8, 2014 by christian*

**Math Someone plz plz plz help!!!**

Jorge plans to paint a bedroom wall that is shaped like a trapezoid. The bottom edge of the wall is 22.5 feet long, and the top edge of the wall is 9.5 feet long. If the wall is 8 feet tall, what is the area of the wall? • 256 ft2 ***** • 38 ft2 • 90 ft2 • 128 ft2 ...

*February 8, 2016 by GoldenSparkleGirl*

**advanced math**

A ladder is placed 4 ft from the side of a building. The top of the ladder must be 13 ft off the ground. What is the shortest ladder that will do the job? 4^2 + 13^2 = x^2 16+169=185^ =34,225

*October 23, 2016 by K*

**algebra**

A women has a ladder that is 13 feet long.if she sets the base of the ladder on level ground 5 feet from the side of a house,how many feet above the ground will the top of the ladder be when it rests against the house?

*May 14, 2013 by kirandeep*

**algebra**

if a wall is 34 feet, how tall must a ladder be to reach the top if at a 75 degree angle

*June 5, 2012 by jen*

**Pre-Algebra**

A 9 foot ladder leans against a building at a point 7 feet above the ground. At what height would a 15 foot ladder touch the building if both ladders for the same angle with the ground? Propotion? But I just get a decimal...

*January 5, 2010 by Dean*

**calculus**

an 8ft 2 by 4 is leaning against a 10ft wall. THe lower end of the 2 by 4 is pulled away from the wall at the rate of 1ft/sec. How fast is the top of the 2 by 4 moving toward the ground (a) when it is 5 ft from the ground and (b) when it is 4 ft from the ground?

*October 6, 2010 by Joshie*

**Math HELP!**

A ladder is leaning against a house. The distance between the base of the ladder to the house is 3 feet. The length of the ladder is 10 feet. In feet, how far above the ground does the ladder touch the house? A. 4.2 ft B. 9.5 ft C. 10.4 ft D. 14.1 ft Is the answer B? Thanks

*October 22, 2014 by Anonymous*

**pre algebra**

A ladder is leaning against a house. The distance between the base of the ladder to the house is 3 feet. The length of the ladder is 10 feet. In feet, how far above the ground does the ladder touch the house? 4.2 9.5 10.4 14.1

*October 24, 2014 by Keli*

**Physics**

a baseball is hit at a height h = 1.10 m and then caught at the same height. It travels alongside a wall, moving up past the top of the wall 1.2 s after it is hit and then down past the top of the wall 3.2 s later, at distance D = 53 m farther along the wall. (a) What ...

*September 13, 2010 by Antonio*

**Physics**

In Figure 4-44, a baseball is hit at a height h = 1.10 m and then caught at the same height. It travels alongside a wall, moving up past the top of the wall 1.1 s after it is hit and then down past the top of the wall 4.8 s later, at distance D = 47 m farther along the wall. (...

*January 21, 2011 by Blake*

**math**

A child’s kite is on top of a straight pine tree. A ladder is placed against the tree and touches the kite. The ladder forms a 45-degree angle with the flat ground. The base of the tree is 9 feet away from the base of the ladder. With only this information, how can you ...

*April 19, 2013 by Tom*

**math**

A child’s kite is on top of a straight pine tree. A ladder is placed against the tree and touches the kite. The ladder forms a 45-degree angle with the flat ground. The base of the tree is 9 feet away from the base of the ladder. With only this information, how can you ...

*April 23, 2013 by Anonymous*

**geometry**

a lader is leaning against a jouse and is forming a 60 degree angle with the ground. if the top of the ladder is 24 feet off of the gound, how long is the ladder? leave your answer in exact form.

*November 6, 2008 by hannah*

**Physics**

A group of soldiers hid at the bottom and against the wall of a 100 m. high cliff. Unknown to them, the Evil rebels have positioned a cannon on top of the cliff; 8,000 m. from the edge. If the cannon has a muzzle speed of 320 m/sec, how close to the bottom edge of the cliff ...

*March 1, 2015 by akocciara*

**Physics(Help!!!!)**

A person of mass m2= 85.0 kg is standing on a rung, one third of the way up a ladder of length d= 3.0 m. The mass of the ladder is m1= 15.0 kg, uniformly distributed. The ladder is initially inclined at an angle Î¸= 35.0âˆ˜ with respect to the horizontal. Assume that ...

*December 9, 2013 by keitanako*

**geometry**

A 25 meter ladder is leaned against a tall building. If the ladder makes a 30 degree angle with the ground, how high up on the building (in meters) does the ladder fall?

*February 24, 2016 by Courtney*

**Geometry**

A ladder leaning against a house makes an angle of 60 degrees with the ground. The foot of the ladder is 7 ft from the house. How long is the ladder?

*February 9, 2014 by Evra*

**PHYSICS**

A 7 m ladder weighing 250 N is being pushed by force F AT bottom What is the minimum force needed to get the ladder to move? The static coefficient of friction for all contact surfaces is 0.4.

*August 10, 2010 by sushanth*

**Geometry**

A 10 ft. ladder is leaning against a building and makes an angle of 65 degrees with the ground. How high above the ground is the top of the ladder?

*April 19, 2011 by Randi*

**algebra 1**

A ladder leaning against a house makes an angle of 60 degress with the ground. The foot of the ladder is 7 feet from the foundation of the house.how long is the ladder? please some sugesstions

*April 23, 2011 by nena*

**Math word problem**

A fire and rescue squads places a 15 ft ladder against a burning building. If he ladder is 9ft from the building how far up will the ladder reach? I got 17.5 ft Is that right?

*February 19, 2013 by Marco*

**Physics Classical Mechanics**

A person of mass m2= 85.0 kg is standing on a rung, one third of the way up a ladder of length d= 3.0 m. The mass of the ladder is m1= 15.0 kg, uniformly distributed. The ladder is initially inclined at an angle θ= 35.0∘ with respect to the horizontal. Assume that ...

*November 26, 2013 by A*

**math**

a man climbing a ladder which is inclined to the wall at an angle of 30 degree. if he ascend at the rate of 2m/s then he approach the wall at the rate of

*August 29, 2014 by suman*

**geometry**

a 30 foot ladder leaning against a vertical wall makes an angle of 81 degrees with the ground how far from the base of the pole is the surveyor?

*May 20, 2014 by taylor*

**physics**

A ladder sits 2 meters away from the side of a house. The top of the ladder rests at 13 meters above the ground. What is the length of the ladder?

*October 6, 2016 by Anonymous*

**Math**

The firemen's ladder is 39 feet long (L). The firemen set the base of the ladder 12 feet away from the building (d). When the firemen lean the ladder against the building, the top of the ladder reaches the third floor window. How high, in feet, is the third floor window from ...

*March 10, 2016 by Destiny*

**physics**

A 4.5 kg can of paint is sitting on top of a 0.8 meter high step ladder. How much work did you do to move the can of paint to the top of the ladder?

*December 15, 2010 by Josue*

**Math**

Use the pythagorean Theorem to solve this problem. A painter places an 11 ft ladder against a house. The base of the ladder is 3 ft from the house. How high on the house does the ladder reach?

*April 28, 2011 by MathIsTheBest*

**math **

An extension laddder is to be placed against a house so that it reaches 1 ft above the edge of the roof, which is 23.5 ft high. The ladder makes an angle of 70 degrees with the ground. How long must the ladder be? How far is the distance from the house to the base of the ladder?

*January 11, 2017 by randey *

**Pythagorean Theorem**

A ladder resting against the side of a building reaches 32 ft up the building. If the ladder is 40 ft long, how far from the building is the base of the ladder?

*July 15, 2010 by david*

**Calculus**

A tool shed, 250cm high and 100cm deep, is built agaisnt a wall. Calculate the shortest ladder that can reach from the ground, over the shed, tot he wall behind.

*June 20, 2010 by Adeola*

**Physics**

In an amusement ride, fun seeking people enter a 7.4 meter diameter cylinder and stand up against the wall. The cylinder spins fast enough so that when the bottom drops down 2 meters, the people remain pinned to the wall. The cylinder continues to rotate for awhile but then ...

*October 20, 2011 by Me*

**gemoetry**

A self-supporting ladder placed so that the angle between the ladder and the ground is 75.5° can be used to test whether the ladder can support a certain load. The diagram represents a ladder placed next to a window that is 20 feet above the ground. What is the length of the ...

*April 9, 2016 by kirk*

**math**

A worm is at the bottom of a 12- foot wall. Every day it crawls up 3 feet, but at night it slips down 2 feet. How many days does it take the worm to reach the top of the wall?

*January 20, 2010 by ewi*

**Physics **

A trebuchet was a hurling machine built to attack the walls of a castle under siege. A large stone could be hurled against a wall to break apart the wall. The machine was not placed near the wall because then arrows could reach it from the castle wall. Instead, it was ...

*September 25, 2015 by barich*

**math**

The bottom of a ladder is placed 4 feet away from a house and it reaches a height of 16 feet on the side of the house. What is the slope of the ladder?

*February 4, 2014 by :)*

**math**

A ladder is leaning against the side of a house and forms an angle of 66o with the ground. The foot of the ladder is 11.3 feet from the base of the house. Find the length of the ladder to the nearest foot.

*May 27, 2014 by danielle*

**math 4 grade**

A firefighter stood on the middle rungs of a ladder ,spraying water on a burning house. He then climbed up 6 rungs before the heat of the flames caused him to come down 10 rungs.After some minutes he was able to climb 18 rungs to the very top of ladder .How many rungs did the...

*October 7, 2010 by Thanh*

**Math**

Two ladders are the same distance from the base of a wall. The longer ladder is 15m long and makes an angle of 58 with the ground. if the shorter ladder is 12.6m long, what angle does it make with the ground?

*May 13, 2015 by Emily*

**geometry**

a ladder is placed against the side of a building at an angle of 50 degree. the ladder's base is 10ft away from the base of the building. How long is the ladder?

*February 28, 2012 by james*

**Algebra**

A 10 foot ladder is to be placed against the side of a building. The base of the ladder must be placed at an angle of 72degree with the level ground for a secure footing. Find to the nearest inch, how far of the ladder should be from the side of the building and how far up the...

*February 7, 2012 by Zing*

**Math**

A 21-foot ladder is leaning against a building. The base of the ladder is 7 feet from the base of the building. To the nearest degree, what is the measure of the angle that the ladder makes with the ground? (Hint: Sketch the problem before solving.)

*October 3, 2014 by TeeKay*

**geometry **

thebottom of the ladder is 3 feet from the building. the ladder makes an angle of 75 degree with the ground. how high up on the building does the ladder reach? how long is the ladder?

*October 18, 2012 by donta*

**geometry**

a self supporting ladder placed so that the angle between the ladder and the ground is 75.5" can be used to test whether the ladder can support a certain load. The diagram represents a ladder placed next to a window that is 20feet above the ground. What is the length of the ...

*May 29, 2014 by shan*

**Trigonometry **

Hi this is a two part question. I got the first part but can't figure out second. Please help! A home is designed to keep sun off outside south wall during summer months and have wall exposed to dun as much as possible during winter months. The highest angle of sun in summer ...

*October 1, 2014 by Cherie*

**Calculus**

A fence 5 feet tall runs parallel to a tall building at a distance of 7 feet from the building. What is the length of the shortest ladder that will reach from the ground over the fence to the wall of the building? [Hint: Determine the length of a ladder that touches the ...

*June 22, 2009 by Z32*

**Easy Pre-calculus Questions?**

What is the value of x in the right triangle below? If needed, round your answer to two decimal places. 32 angle, 15 inches. A 10-foot ladder is leaning up against the side of a building so that the top of the ladder reaches the top of the building. If the ladder meets the ...

*June 30, 2011 by kalakalikalakali*

**calculus**

a wall 10 feet high is 8 feet from a house. find the length of the shortest ladder that will reach the house when one end rest on the ground outside the wall.

*February 8, 2012 by marg*

**calculus**

"How fast is the area of the triangle formed by the ladder, the house, and the ground when the base of the ladder is 7 ft. away from the wall? Given h=24ft. dh/dt=-7/12ft. per sec. b=7 (base) db/dt=2ft. per sec. d/dt[A=1/2bh] How would you derive this with respect to time?

*October 14, 2010 by Guy*

**Math**

Mr.Brown is building a slide for his kids. The ladder is 3 meters tall ad the slide is 5 meters long. What is the distance between the ladder and the bottom of the slide?

*April 22, 2013 by Anna*

**Algebra**

45foot ladder is leaning against a building. The base of the ladder is 27 feet from the side of the building. How high does the ladder reach along the side of the building? ladder reaches ___ feet high on the building.

*August 27, 2016 by Chasen*

**math**

a 15 foot ladder is leaning against a house with the base of the ladder 4 feet from the house. How high up the house does the ladder reach? round to the nearest tenth foot.

*June 11, 2014 by Katie*

**Math**

An extension ladder adjusts in length from 10 ft to 16 ft. Suppose you've leaned your ladder against your house sot that, at its minimum lenght, it touches the base of your first floor window, 9 feet above the ground. Without moving the base, how high will the ladder reach ...

*March 24, 2009 by Suz*

**math,algebra**

Can someone set this up in equations so i can solve them i would greatly appreciate it. THanks. Problem #3 The base of a ladder is 14 feet away from the wall. The top of the ladder is 17 feet from the floor. Find the length of the ladder to the nearest thousandth. Problem #4 A...

*April 17, 2007 by jasmine20*

**math**

A ladder of length 10 m rests with its lower end on a horizontal floor and with a rate of 2m/sec when the lower end is at 8m away from the wall, find: the rate of change of the angle between the ladder and the floor

*October 19, 2015 by ali*

**Physics ~Conservation of Energy~ part 2**

1.) A 500 kg roller coaster is pulled to the top of a hill 45 m high and arrives at the top with a zero speed. a) how much work has done by the vhain to pull the car to the top? b) how much potential energy does it have at the top? c)What is the total energy of the system? d) ...

*January 30, 2013 by Isis*

**Physics**

Draw the figure. You have the following equations that you can write: a) Sum Vertical Forces=0 b) Sum horizontal forces=0. Remember that at the upper part of the ladder, there is a horizontal force (only). c) Sum of moments about any point, I suggest the base of the ladder as...

*May 31, 2007 by bobpursley*

**Math**

A ladder is leaning against the side of a house so that it can reach a window that is 25 feet off the ground. The angle in which is formed between the ladder and the ground is 52 degrees. How far from the base of the house is the base of the ladder? Round the answer to the ...

*December 2, 2014 by Michael*

**Physics**

A rubber ball is thrown against the wall. The ball has a mass of 4 g and strikes the wall perpendicularly with a speed of 12 m/s. The acceleration is constant while the ball is touching the wall. After touching the wall, the center of mass moves .5 cm toward the wall, and back...

*April 12, 2009 by Michael*

**Precalculus **

A 28 foot ladder just reaches the top of a building and forms an angle at 44. 4 degrees with the wall of the building. How many feet is the building tall?

*July 2, 2013 by Jeanette*

**math**

Consider a slide shaped like a right triangle. The base of the slide is 45 feet away from the ladder. The top of the slide is 20 feet high. a) What is the slope of the slide. b) write an equation for the line that the slide would form. c) Lets say you were standing at the ...

*February 19, 2015 by kat*

**math**

Consider a slide shaped like a right triangle. The base of the slide is 45 feet away from the ladder. The top of the slide is 20 feet high. a) What is the slope of the slide. b) write an equation for the line that the slide would form. c) Lets say you were standing at the ...

*February 19, 2015 by kat*

**math**

32foot ladder at a 70degree angle. How high is top of ladder

*June 4, 2016 by Anonymous*

**math**

A firefighter stood on the middle rungs of a ladder ,spraying water on a burning house. He then climbed up 6 rungs before the heat of the flames caused him to come down 10 rungs.After some minutes he was able to climb 18 rungs to the very top of ladder .How many rungs did the ...

*October 6, 2010 by Thanh*

**geometry**

the base of a 34ft ladder is placed 12ft from a building. how high above the ground is the top of the ladder

*March 19, 2012 by annonimus*

**Trig**

A 24-foot ladder is placed against a building. The building is perpendicular to the level ground so that the base of the ladder is 11 feet away from the base of the building. How far up the building, in feet, does the ladder reach? Round to nearest hundredth.

*May 19, 2014 by Joseph*

**Calculus**

A ladder 15 feet long is leaning against a building so that end X is on level ground and end Y is on the wall. Point 0 is where the wall meets the ground. X is moving away from the building at a constant rate of 1/2 foot per second. (a.) Find the rate in feet per second at ...

*February 5, 2012 by Amy*