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April 20, 2014

Search: A 14 foot ladder is..

Number of results: 22,782

Geometry
A rt. triangle is formed: X = hor. side = Dist. from bottom of ladder to wall. Y = ver. side = dist. from gnd to top of ladder. r = 18Ft = hyp.(Ladder). A = 48 Deg. = Angle bet. gnd and bottom of ladder. X = 18*cos48 = 12 Ft.
Tuesday, March 20, 2012 at 10:24am by Henry

algebra 2
A ladder of 25ft is placed against a building in such a way that the distance from the top of the ladder to the ground is 12ft more than the distance from the bottom of the ladder to the building. What is the quadratic equation used to find the distance from the bottom of the ...
Wednesday, June 12, 2013 at 4:49pm by Anonymous

Calculus
A ladder 10 ft long rests against a vertical wall. If the bottom on the ladder slides away from the wall at 2 ft/s, how fast is the angle ladder makes with the ground changing when the bottom of the ladder is 5 ft from the wall?
Tuesday, December 7, 2010 at 10:22am by Tina P

geometry
a ladder leaning against a wall makes a 60 degree angle with the ground. the based of the ladder is 4m from the building. how high above the ground is the top of the ladder
Wednesday, December 7, 2011 at 3:06pm by anonymous

math
a ladder leaning against a wall makes a 60 degree angle with the ground. the base of the ladder is 4m from the building. how high above the ground is the top of the ladder?
Tuesday, December 13, 2011 at 1:43pm by michael

trig.
A ladder 20 feet long leans against the side of a house. Find the height from the top of the ladder to the ground if the angle if the angle of elevation of the ladder is 80°
Wednesday, March 7, 2012 at 6:19pm by julie

trig.
A ladder 20 feet long leans against the side of a house. Find the height from the top of the ladder to the ground if the angle if the angle of elevation of the ladder is 80°
Wednesday, March 7, 2012 at 6:20pm by julie

math
A ladder , 5 meter long , standing on a horizontal floor , leans against a vertical wall . If the top of the ladder slides downwards at the rate of 10 cm/sec . Find the rate at which the angle between the floor and the ladder is decreasing when the lower end of the ladder is 2...
Sunday, June 19, 2011 at 3:59am by lucky

phsyical science
compare an atoms structure to a ladder. what parts of the ladder correspond to the energy levels of the atom/ identify one way a real ladder is not a good model for an atom.
Wednesday, October 15, 2008 at 10:21pm by taylor

Math
A fire ladder extends 18m. Each storey of a burning building is 10ft. If the ladder can have a maximum angle with the ground of 75 degrees, to what storey would the ladder reach?
Monday, January 7, 2013 at 8:27pm by Anonymous

geometry
A ladder is propped against a wall. If the top of the ladder reaches 18 feet up the wall and the base of the ladder is 6 feet from the base of the wall, how long is the ladder?
Tuesday, January 25, 2011 at 9:34pm by carolyn

calculus
A 20 ft ladder is leaning against the side of a house. If the bottom of the ladder is moving away from the house at the rate of 2 feet per second, how fast is the top of the ladder moving down the wall when the bottom of the ladder is 12 feet from the house
Wednesday, March 16, 2011 at 6:24pm by Diana

Math
A ladder 20 ft long rests against a vertical wall. Let \theta be the angle between the top of the ladder and the wall and let x be the distance from the bottom of the ladder to the wall. If the bottom of the ladder slides away from the wall, how fast does x change with respect...
Wednesday, April 28, 2010 at 12:54am by Jennifer

Math
A ladder 20 ft long rests against a vertical wall. Let \theta be the angle between the top of the ladder and the wall and let x be the distance from the bottom of the ladder to the wall. If the bottom of the ladder slides away from the wall, how fast does x change with respect...
Wednesday, April 28, 2010 at 12:54am by Jennifer

calculus
A ladder 10 ft long rests against a vertical wall. let θ be the angle between the top of the ladder and the wall and let x be the distance from the bottom of the ladder to the wall. If the bottom of the ladder slides away from the wall, how fast does x change with respect...
Thursday, October 7, 2010 at 2:47am by Sasha

math
A ladder 10 ft long rests against a vertical wall. let θ be the angle between the top of the ladder and the wall and let x be the distance from the bottom of the ladder to the wall. If the bottom of the ladder slides away from the wall, how fast does x change with respect...
Thursday, October 7, 2010 at 8:52am by Sasha

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 ...
Tuesday, November 27, 2012 at 1:24am by Min

physics
A ladder of mass 34.4 kg and length 3.36 m is leaning against a wall at an angle θ. The coefficient of static friction between ladder and floor is 0.326; assume that the friction force between ladder and wall is zero. What is the maximum value that θ can have before ...
Wednesday, April 6, 2011 at 8:40pm by Anonymous

physics
A ladder of mass 39.0 kg and length 3.18 m is leaning against a wall at an angle θ. The coefficient of static friction between ladder and floor is 0.298; assume that the friction force between ladder and wall is zero. What is the maximum value that θ can have before ...
Sunday, April 10, 2011 at 1:09pm by I need help

physics
) A uniform ladder of mass m and length leans at an angle against a frictionless wall. If the coefficient of static friction between the ladder and the ground is determine a formula for the minimum angle at which the ladder will not slip.
Wednesday, November 6, 2013 at 10:35am by emy

mathematic
let the angle you mentioned be Ų Let the foot of the ladder be x ft from the wall, and the height of the ladder be y ft cosŲ = y/10 y = 10cosŲ dy/dt = -10sinŲ dŲ/dt when x = 6 x^2+y^2=100 y = 8 , and sinŲ = 8/10 Also we know dy/dt = -3 m/s -3 = -10(8/10)(dŲ/dt) dŲ/dt = 3/8 ...
Thursday, March 22, 2012 at 8:23am by Reiny

Calculus Please Help!!
"A 13-foot ladder is leaning against a building when its base begins to slide away from the base of the building. By the time the base is 12 feet from the building, the base is moving at the rate of 6 ft/sec. How fast is the top of the ladder sliding down the wall at that ...
Sunday, December 1, 2013 at 7:09pm by Lindsay

physics
For the step ladder shown in the Figure, sides and are each ft long and hinged at . is a -ft long tie rod, installed halfway up the ladder. A -kg man climbs ft along the ladder. Assuming that the floor is frictionless and neglecting the weight of the ladder, find the tension ...
Thursday, April 10, 2008 at 1:21am by lizzy

math(Please help!!!)
A ladder is leaning against a house and is forming a 60 degree angle with the ground. If the top of the ladder is 18 feet off of the ground, how long is the ladder? Leave your answer in exact form.
Tuesday, November 4, 2008 at 10:00pm by Abbey

MATH
A ladder is 25 ft long. The ladder needs to reach to a window that is 24 ft above the ground. How far away from the building should the bottom of the ladder be placed? Please show work.
Monday, March 11, 2013 at 7:55pm by Annie

CALCULUS
A 25 ft ladder is leaning against a vertical wall. At what rate (with respect to time) is the angle theta between the ground and the ladder changing, if the top of the ladder is sliding down the wall at the rate of r inches per second, at the moment that the top of the ladder ...
Thursday, March 29, 2012 at 7:26pm by Anonymous

physics
(c) A ladder with length L and mass m rests against a wall. Its upper end is a distance h above the ground (Figure 13.3). The center of gravity of the ladder is one-third of the way up the ladder. A fire fighter with mass M climbs halfway up the ladder. Assume that the wall, ...
Tuesday, May 21, 2013 at 1:45am by PURITAE

Physics - Equilibrium
A uniform ladder of mass M and length L leans at an angle theta against a frictionless wall. If the coefficient of static friction between the ladder and the ground is U, determine a formula for the minimum angle at which the ladder will not slip.
Friday, April 18, 2008 at 3:44pm by Nik

geometry
a ladder is 15 ft long and is leaning against the wall. the top of the ladder is 12 feet above the ground. find the distance from the bottom of the ladder to the wall. draw and label a picture and show work....
Tuesday, March 20, 2012 at 8:53pm by rob

physics
a uniform ladder of mass m and length l leans against fricitonless wall angle theta. If the coefficient of static friction between the ladder and the ground is u, find the formula for the minimun angle such that the ladder won't slip
Friday, November 30, 2012 at 1:12pm by ashley

Physics
A uniform ladder of mass m = 6.5 kg and length l = 2.1 m leans at an angle against a frictionless wall, Fig. 12-72. If the coefficient of static friction between the ladder and the ground is µs = 0.3, what is the minimum angle at which the ladder will not slip?
Saturday, March 15, 2014 at 3:51pm by Anonymous

physics
If the coefficient of static friction is 0.350, and the same ladder makes a 64.0° angle with respect to the horizontal, how far along the length of the ladder can a 71.9-kg painter climb before the ladder begins to slip? The same ladder is 46.7 Newtons in weight and 10.4 ...
Saturday, October 23, 2010 at 6:49pm by heather

algebra 1
if you have a 10ft ladder placd leaning against the wall,and the ladder is 6ft from the wall.how high does the ladder reach on the wall?
Friday, May 27, 2011 at 2:31pm by tyyyyyy

plane and spherical trigonometry
a ladder 38 feet long is leaning against the side of a wall. if the angle between the ladder and the wall is 54 (degrees) approximately how far is the bottom of the ladder from the wall?
Monday, July 8, 2013 at 3:51am by mhonic

Math
As part of a training exercise, 16 firemen need to carry equipment up a ladder hooked to the top of an office building that is 15 meters tall. If the base of the ladder is 7 meters from the wall, about how long is the ladder?
Wednesday, May 2, 2012 at 3:45pm by askaaska

Physics
The angle that the ladder makes with the floor is cos^-1 (2.8/5.8) = 61.13 degrees The ladder touches the window at a point 5.8 sin 61.13 = 5.079 m from the ground. Draw a free body diagram and set the total moment of forces about the bottom of the ladder equal to zero. Three ...
Sunday, March 2, 2008 at 10:15pm by drwls

Math
A ladder 10 ft long rests against a vertical wall. If the bottom of the ladder slides away from the wall at a rate of 1.2 ft/s, how fast is the angle between the ladder and the ground changing when the bottom of the ladder is 8 ft from the wall? Evaluate your answer ...
Friday, December 12, 2008 at 9:56am by Aiton

Related Rates
A ladder 10 ft long rests against a vertical wall. If the bottom of the ladder slides away from the wall at a rate of 2 ft/s, how fast is the angle between the ladder and the ground changing when the bottom of the ladder is 5 ft from the wall? Evaluate your answer numerically...
Thursday, December 2, 2010 at 10:08pm by Michael

Math Word Problem
A turtle crawls a hill 2 feet and slides back 1 foot each attempt. How many attempts will it take to reach the 14 foot hill? Please explain. Thanks
Monday, December 4, 2006 at 12:34am by Mark

Process Technology
How many minutes will it take for an oil well producing 350 barrels of oil per day to fill a 14 foot diameter by 49 foot tall tank?
Saturday, January 7, 2012 at 4:11pm by Cori

physics
An 77 person stands on a uniform ladder 4.0 long, that weighs 100 , as shown in the figure . The floor is rough; hence, it exerts both a normal force, , and a frictional force, , on the ladder. The wall, on the other hand, is frictionless; it exerts only a normal force, . the ...
Wednesday, December 7, 2011 at 5:09pm by bob

physics
A uniform ladder of mass m and length L leans at an angle θ against a frictionless wall. If the coefficient of static friction between the ladder and the ground is 0.43, what is the minimum angle at which the ladder will not slip? Do i use the equation Fn- Mg= 0
Monday, January 17, 2011 at 11:30am by Sydney

Physics
The Ladder is 5 m long and weighs 180N. The guy weighs 800N, and stops 1m horizontally up the ladder. The bottom of the ladder rest on a horizontal stone ledge at 53.1 degree. Find the normal and he frictional force at the base. HELP!!!
Sunday, November 3, 2013 at 7:59pm by Anonymous

Physics
The Ladder is 5 m long and weighs 180N. The guy weighs 800N, and stops 1m horizontally up the ladder. The bottom of the ladder rest on a horizontal stone ledge at 53.1 degree. Find the normal and he frictional force at the base. HELP!!!
Sunday, November 3, 2013 at 4:12pm by Anonymous

Math
A ladder is placed against a wall, with its base 2 m from the wall. The ladder touches the top of a 2 m fence that is 1.5 m from the wall. How high up the wall does the ladder reach? Thanks for answering! Your help is greatly appreciated.
Sunday, September 4, 2011 at 11:58am by Jim

math
A ladder 9.00 m long leans against the side of a building. If the ladder is inclined at an angle of 75.0° to the horizontal, what is the horizontal distance from the bottom of the ladder to the building?
Sunday, July 19, 2009 at 10:35pm by melvin

physics
A ladder 8.65 m long leans against the side of a building. If the ladder is inclined at an angle of 63.0° to the horizontal, what is the horizontal distance from the bottom of the ladder to the building?
Monday, August 23, 2010 at 9:37am by Kayla

physics
A ladder 7.65 m long leans against the side of a building. If the ladder is inclined at an angle of 60.5° to the horizontal, what is the horizontal distance from the bottom of the ladder to the building?
Friday, September 14, 2012 at 10:16am by kim

Algebra
I need to find the slope of a ladder that is leaning against a building. The bottom of the ladder is 9 ft from the building and the top of the ladder is 16 ft above the ground.
Tuesday, February 19, 2013 at 5:23pm by Todd

physics
A ladder 7.65 m long leans against the side of a building. If the ladder is inclined at an angle of 72.5° to the horizontal, what is the horizontal distance from the bottom of the ladder to the building?
Sunday, September 1, 2013 at 11:50am by Amy

Math
A firefighters ladder, 65 feet long, rests against a tall building. If the bottom of the ladder is 16 feet from the building, how high up the wall does the ladder reach.
Thursday, December 12, 2013 at 11:04pm by Anonymous

Math
Suppose there is a 10 meter ladder leaning against the wall of a building and the base of the ladder is sliding away from the building at a rate of 3 meters per second. How fast is the top of the ladder sliding down the wall when the base of the ladder is 8 meters from the wall?
Thursday, December 30, 2010 at 3:10pm by Terra

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?
Tuesday, February 28, 2012 at 8:51pm by james

geometry
The top of a ladder is leaning on a building at a point 12 feet above the ground; the bottom of the ladder is 5 feet from the base of the building. What is the length of the ladder?
Monday, May 14, 2012 at 10:18pm by Anonymous

Geometry
Need to use a ladder to reach a window that is 8 meters above the ground. The base of the ladder will be 6 meters from base of the building. How long must the ladder be?
Tuesday, August 28, 2012 at 8:18pm by Des

Math
A 26ft ladder is placed against a vertical wall of a building, with the bottom of the ladder standing on level ground 24ft from the base of the building. How high up the wall does the ladder reach?
Saturday, November 2, 2013 at 12:39am by Pam

Physics - PLEASE HELP
A 25-kg uniform ladder 10-m is leaning against a frictionless wall. The ladder is making an angle of 32° to the ground. What is the magnitude of the total force exerted on the ladder by the ground? 675 N 462 N 245 N 543 N 314 N
Monday, November 4, 2013 at 1:44pm by shaun

math
That depends upon the length of the ladder. You can figure out the minimum length of the ladder with this formula -- where 3.8 is a and 0.7 is b and c is the length of the ladder. a^2 + b^2 = c^2
Wednesday, November 7, 2007 at 1:20pm by Ms. Sue

math
a 13 ft ladder is placed against a vertical wall of a building, with the bottom of the ladder stand on level ground 5ft from the base of the building. how high up the wall does the ladder reach.
Friday, November 1, 2013 at 11:53am by pam

Math
If a wall is 6th tall and a ladder is leaning against it. The ladder is 8th tall, how far apart is is the base of the ladder away from the wall?
Tuesday, December 7, 2010 at 6:50pm by Tiara

math
A ladder leans against a wall four feet above the ground. The base of the ladder is three feet from the wall. How long is the ladder?
Wednesday, March 9, 2011 at 8:00pm by anonymous

Physics
A ladder of mass 39.4 kg and length 2.88 m is leaning against a wall at an angle θ. The coefficient of static friction between ladder and floor is 0.282; assume that the friction force between ladder and wall is zero. What is the maximum value that θ can have before ...
Monday, June 25, 2012 at 2:34pm by James

physics
Set the moment about the ladder/wall contact point equal to zero. Assume the ladder has no mass. (That is probably not a good assumption, but they did not provide a value). Let the ladder length be L, and the distance of the ladder bottom from the wall be x. The person's ...
Thursday, October 14, 2010 at 6:17am by drwls

physics
This is an example of a very poor question, I am sorry you have to suffer thru it. 4 meters up a ladder? How is up measured, vertically, or along the path of the ladder? Lets just assume it is not "up", not " vertically", but along the path of the ladder. THen the distance you...
Thursday, April 26, 2012 at 12:26pm by bobpursley

Calc.
A ladder 25ft long is leaning against the wall of a house. The ladder is pulled away from the wall at a rate of 2 ft per second. How fast is the top of the ladder moving down the wall when its base is 7ft from the wall?
Monday, November 1, 2010 at 5:17pm by Preston

Calculus
A 20' ladder leans against a building. The bottom of the ladder is sliding away horizontally at a rate of 2 feet per second. How fast is the top of the ladder sliding down the building when it is 12' above the ground?
Wednesday, November 2, 2011 at 10:27pm by Amy

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?
Tuesday, February 19, 2013 at 8:40pm by Marco

Calculus
A 15 ft ladder is placed against a vertical wall. the bottom of the ladder is sliding away from the wall at a rate of 2 ft/sec. How fast is the top of the ladder sliding down the wall when the bottom of the ladder is 9 ft from the wall?
Thursday, February 28, 2013 at 11:58am by Trevor

Physics
A house painter stands 3 m above the ground on a 5.3-m-long ladder that leans against the wall at a point 4.7 m above the ground. The painter weighs 638 N and the ladder weighs 143 N. Assuming no friction between the house and the upper end of the ladder, find the force of ...
Saturday, March 17, 2012 at 7:40pm by Keith

math
You want to install kitchen floor tiles that each measure 12 inches by 12 inches (1 sq. foot). Your kitchen measures 12 feet by 14 feet, but there is a 2 foot by 4 foot area around the sink that will not be tiled. How many tiles do you need?
Tuesday, October 7, 2008 at 12:23pm by Anonymous

SCIENCE
A uniform ladder which is 10metres long and weighs 300newtons leans with its upper end against smooth vertical wall and its lower end on arough ground.the bottom of the ladder is 6metres from the base of the wall.a man weighing 700newtons stands on the ladder at a point ...
Friday, November 13, 2009 at 8:02am by SOLVE

physics
A uniform 250 N ladder rests against a perfectly smooth wall, making a 35 degree angle with the wall. (a)Draw a free body diagram of the ladder. (b) Find the normal forces that the wall and the floor exert on the ladder. (c) What is the friction force on the ladder at the ...
Monday, November 9, 2009 at 4:02pm by collegekid

physics
A 150-kg ladder leans against a smooth wall, making an angle of 30 degrees with the floor. The centre of gravity of the ladder is one-third the way up from the bottom. How large a horizontal force must the floor provide if the ladder is not to slip?
Friday, October 7, 2011 at 5:46pm by lawrence

math,help
can someone help me set this word problem up into equations so i can solve. I don't want the answer just if you could help me with how to set it up. thanks The base of ladder is 14feet away from the wall. The top of the ladder is 17feet from the floor.Find the length of ladder...
Friday, April 20, 2007 at 2:14pm by jasmine20

Calc 1
if h is the height of the ladder on the wall, and x is the distance of the base of the ladder from the wall, then by similar triangles, x/h = (x-3)/8 h = 8x/(x-3) Now, the ladder length y is y^2 = x^2 + h^2 = x^2 + 64x^2/(x-3)^2 2yy' = 2x + 128x/(x-3)^2 - 128x^2/(x-3)^3 y' = (...
Tuesday, April 24, 2012 at 1:16am by Steve

Physics
Romeo takes a uniform 15.0-m ladder and leans it against the smooth (frictionless) wall of the Capulet residence. The ladder's mass is 20.2 kg and the bottom rests on the ground 3.07 m from the wall. When Romeo, whose mass is 70 kg, gets 93.2 percent of the way to the top, the...
Sunday, February 19, 2012 at 5:03pm by Jerry

physics
Romeo takes a uniform 13.7-m ladder and leans it against the smooth (frictionless) wall of the Capulet residence. The ladder's mass is 23.2 kg and the bottom rests on the ground 3.43 m from the wall. When Romeo, whose mass is 70 kg, gets 88.3 percent of the way to the top, the...
Friday, February 15, 2013 at 5:41pm by Nick

physics
Romeo takes a uniform 13.7-m ladder and leans it against the smooth (frictionless) wall of the Capulet residence. The ladder's mass is 23.2 kg and the bottom rests on the ground 3.43 m from the wall. When Romeo, whose mass is 70 kg, gets 88.3 percent of the way to the top, the...
Sunday, February 17, 2013 at 4:23pm by Nick

math
original position of foot of ladder x^2+24^=25^ ... x = 7 so it moves out another 10 feet, so foot is 17 feet from wall y^2 + 17^2 = 25^2 ... y^2 = 336 y = √336 = appr 18.3 well, it was up 24 feet and now is up only 18.3 feet, so ....... ??
Thursday, September 13, 2012 at 6:43pm by Reiny

MATH
The bottom of the ladder on a horizontal flat surface rests against a wall. It makes an angle of elevation of 35°. The bottom of the ladder is 42 ft from the base of the wall. How long is the ladder? Round your answer to the nearest whole number.
Thursday, May 9, 2013 at 9:45pm by Rich

physics
A person with mass 70 kg is climbing a ladder (length 6m, mass 20 kg) that leans against a smooth wall (no friction). A frictional force fs between the ladder and the floor keeps it from slipping. The angle between the ladder and the wall is 30 degrees. What is the magnitude ...
Wednesday, July 7, 2010 at 9:00pm by josh

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?
Thursday, April 28, 2011 at 9:42pm by MathIsTheBest

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?
Thursday, July 15, 2010 at 1:35am by david

math
a ladder is leaning againt the side of a building. The ladder is 10 feet away from the building and touches the building at a point 24 feet above the base. How long is the ladder?
Wednesday, March 7, 2012 at 9:53pm by mary ann

Physics, need help only on part one.
You are using a 5-m-long ladder to paint the exterior of your house. The point of contact between the ladder and the siding of the house is 4 m above the ground. The ladder has a mass of 18.0 kg. You weigh 56.6 kg and stand three-quarters of the way up the ladder. (a) ...
Tuesday, October 25, 2011 at 10:37pm by mymi

math
A ladder is resting against a wall. The top of the ladder touches the wall at a height of 20ft. Find the length of the ladder if its length is 4 ft more than its distance from the wall.
Wednesday, September 28, 2011 at 7:16pm by stephanie

geom/trig
A 40 ft ladder leans against a wall so the base of the ladder is 11 feet away from the base of the wall . What angle does the ladder make with the wall?
Monday, March 5, 2012 at 7:31pm by Tom

algebra 2
a ladder is resting against a wall. the top of the ladder touches the wall at a height of 6 feet. find the length of the ladder if the lenght is 2 feet more than its distance from the wall.
Sunday, March 18, 2012 at 5:52pm by amanda

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?
Thursday, December 17, 2009 at 11:48am 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?
Thursday, December 17, 2009 at 11:49am by pat

Calculus
A 5m long ladder rests on a vertical wall. if the bottom of the ladder slides away from the wall at 1m/s, how fast is the angle between the lader and the ground changing when the bottom of the ladder is 3m from the wall?
Sunday, August 15, 2010 at 8:50am by Lereesa

Physics
A ladder 10-m long and weighing 50 N rests against a smooth vertical wall. If the ladder is just on the verge of slipping when it makes a 50 degree angle with the ground, find the coefficient of static friction between the ladder and the ground.
Friday, May 7, 2010 at 10:12pm by Stacey

Physics
A 30-kg uniform ladder 12 m long is leaning against a frictionless wall at an angle of 50 degrees above the horizontal. A 45-kg boy climbs 5.0 m up the ladder. What is the magnitude of the force exerted by the ladder on the wall?
Monday, November 4, 2013 at 1:43pm by shaun

quick math
12 x 14 =168 square feet. If the pavers were 1 foot by 1 foot we would need 168 pavers BUT.. your paver is 8 inches which is 8/12 or 2/3 of a foot. It is 2/3 times 2/3 or 4/9 square ft 168 divided by 4/9 which is the same as 168 times 9/4 That will get you to 378.
Wednesday, March 13, 2013 at 11:52pm by Dr. Jane

math
foot of ladder from wall --- x top of ladder up the wall --- y x^2 + y^2 = 400 2x dx/dt + 2y dy/dt = 0 when x=16 16^2 + y^2 = 400 y = 12 and we are given dy/dt = -.4 so ..... 2(16)dx/dt + 2(12)(-.4) = 0 dx/dt = 60/32 = 1.875 m/s
Friday, July 22, 2011 at 8:33pm by Reiny

algebra
a ladder is leaning up against a wall. The ladder is 8 feet long and is 3 feet away from the base of the wall. find the angle the ladder makes with the wall.
Sunday, March 11, 2012 at 3:32pm by abby

Physics
A uniform 250 N ladder rests against a perfectly smooth wall, making a 35 degree angle with the wall. (a) find the normal forces that the wall and the floor exert on the ladder. B) what is the friction force on the ladder at the floor?
Thursday, June 25, 2009 at 11:12pm by Sarah

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?
Thursday, December 17, 2009 at 11:42am by pat

college
A ladder 10 feet long rests against a vertical wall. If the bottom of the ladder slides away from the wall at a speed of 2 ft/s, how fast is the angle between the top of the ladder and the wall changing when the angle is /4 radians?
Tuesday, November 30, 2010 at 11:48pm by Emilia

math
A ladder is leaning against a wall. It touches the wall 60 feet from the ground. The bottom of the ladder is 20 feet from the wall . What is the Slope of the ladder ?
Tuesday, May 15, 2012 at 11:44pm by joejoe

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