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April 20, 2014

Search: fulcrum

Number of results: 202

Physics
Where it the fulcrum? I assume this is a beam blance resting on some sort of a fulcrum support The total moment about the fulcrum must be zero to achieve balance
Tuesday, December 7, 2010 at 3:26pm by drwls

physical science
an adult and a s,all child get on a seesaw that has a movable fulcrum. when the fulcrum is in the middle, the child can't tift the adult. How should the fulcrum be moved so the two can seewaw
Sunday, March 15, 2009 at 11:09pm by joey

physical science
an adult and a s,all child get on a seesaw that has a movable fulcrum. when the fulcrum is in the middle, the child can't tift the adult. How should the fulcrum be moved so the two can seewaw
Sunday, March 15, 2009 at 11:43pm by joey

physics
You do not have to know how the mass is distributed, only that the center of mass is 5/6 of the way from one end. Require that the total moment about the fulcrum be zero. The lever arm to the center of mass from the fulcrum will be L/2 - L/6 = L/3 Let x be the location where ...
Thursday, November 15, 2012 at 2:50am by drwls

Science
Lever, You Find A Smaller Rock, Use As A Fulcrum, You Place It A Meter From Boulder. What Works? """I choose A"""" A)move the fulcrum rock closer to the boulder b)move the fulcrum rock farther from the boulder c) try using the board without a fulcrum d) try shortening your board
Wednesday, March 4, 2009 at 4:33pm by Jenny

Physics
When they talk about the "system's" center of gravity, they mean the board and Norma together. The CG is x past the fulcrum (opposite Norma) and she sits 2-x meters from the fulcrum, with the fulcrum between her and the CG. 20*(2-x) = 10 x 40 - 20x = 10x 30x = 40 x = 4/3 meter
Tuesday, June 8, 2010 at 10:41pm by drwls

Science
You Are Out In The Woods And You Need To Move A Boulder That Is In The Way, You Happen To Have A Long 2-by-4 Board With You And You Decide To Use It As A Lever. You Find A Rock To Act As A Fulcrum. Which Of The Following Would Be A Good Thing To Try? I believe the answer is A ...
Wednesday, March 4, 2009 at 5:03pm by Jenny

Physics
Assume a distance of d from the fulcrum. Take moments about the fulcrum: 350*2-540d=0 d=1.296 m
Saturday, June 22, 2013 at 1:45pm by MathMate

physics
weight = 80*9.81 Newtons I do not have your diagram but assume a fulcrum and two lever arms in which case weight * lever arm from weight to fulcrum = tension * lever arm from fulcrum to tendon
Monday, February 17, 2014 at 5:03pm by Damon

Math
pretend that you started with a large cone of height 12 in, and radius of 8 in. To create the fulcrum, you cut off the top consisting of a cone of height 6 in and radius of 4 inches. to find the lateral surface area of the fulcrum, find the lateral area of the large cone and ...
Friday, May 16, 2008 at 9:57pm by Reiny

theory of machine
a differential band brake has a drum of diameter 800mm. the two ends of the band are fixed to the pins on the opposite sides of the fulcrum of the lever at a distance of a=40mm and b=200mm from the fulcrum. the angle of contact is 270 degree and mue = 0.2 .determine the brake ...
Wednesday, August 1, 2012 at 11:13am by raju

math
1. Two children balance a see-saw in horizontal equilibrium. One weighs 80 lb. and the other weighs 60 lb. and is sitting 4ft. from the fulcrum. Find the force the fulcrum applies to the beam and the distance to the fulcrum to the 80 lb. child. (Neglect the mass of the see-saw)
Saturday, October 29, 2011 at 10:39am by gaurav

math
1. Two children balance a see-saw in horizontal equilibrium. One weighs 80 lb. and the other weighs 60 lb. and is sitting 4ft. from the fulcrum. Find the force the fulcrum applies to the beam and the distance to the fulcrum to the 80 lb. child. (Neglect the mass of the see-saw)
Saturday, October 29, 2011 at 11:37am by gaurav

math
1. Two children balance a see-saw in horizontal equilibrium. One weighs 80 lb. and the other weighs 60 lb. and is sitting 4ft. from the fulcrum. Find the force the fulcrum applies to the beam and the distance to the fulcrum to the 80 lb. child. (Neglect the mass of the see-saw)
Saturday, October 29, 2011 at 1:55pm by rahul

Physics
If a lever has a mechanical advantage of 6, and the distance from the fulcrum to the load is .05m, how far is it from the fulcrum to the effort? I think I'm supposed to use some sort of kinematics formula, but I'm really confused.
Saturday, September 27, 2008 at 10:54pm by Hannah

physics
300 N * .8 m Torque (or "moment of force") is force component perpendicular to the direction to the fulcrum(hinge) times distance to the fulcrum
Monday, February 16, 2009 at 5:20pm by Damon

math
M1 * its distance from fulcrum = M2 times its distance from fulcrum IF the mass of the seesaw itself can be ignored.
Wednesday, January 11, 2012 at 7:11pm by Damon

algebra
To balance a seesaw, the distance, in feet, a person is from the fulcrum is inversely proportional to the person's weight, in pounds. Peter, who weighs 150 pounds, is sitting 3 feet away from the fulcrum. If Joey weighs 90 pounds, how far from the fulcrum should he sit to ...
Sunday, April 7, 2013 at 1:36pm by Alice

Physics
IMA = ideal mechanical advantage = (hand-to-fulcrum distance)/(load-to-fulcrum distance) = 80/20 = 4 The rock weight is not needed.
Monday, March 18, 2013 at 9:45pm by drwls

science
Four cm away, so that the product of (number of clips) x (distance from fulcrum) is the same on both sides 8x2 = 4x4 What you are requiring is that the moments are in balance, so that the net torque about the fulcrum is zero.
Wednesday, January 2, 2008 at 5:52pm by drwls

physics
A girl of weight 500 N sits 3m from the fulcrum. how far away is the fulcrum on the other side should a force of 600  N be applied to balance the girl
Wednesday, March 28, 2012 at 2:52pm by Anonymous

physics
a uniform rod 100cm long and weighing 50N is supported on a horizontal position on a fulcrum which weights of 80N and 100N suspended on its ends. compute the position of the fulcrum
Saturday, March 9, 2013 at 9:41pm by nicolyan

Algebra
Two children balance on opposite ends of a seesaw. One child weighs 45 pounds and the other weighs 38 pounds. The distance between them is 10 feet. What is the distance of each child from the fulcrum (the center balance point of the seesaw)? (HINT: The product of the distance ...
Wednesday, May 9, 2012 at 11:31pm by Cathy

Stor 155
Think of the mean as a fulcrum (balance point) of a distribution. To balance, the weights and distances from the fulcrum must be equal, therefore subtracting one side from the other will always = 0 (assuming that you did your calculations correctly).
Thursday, August 30, 2012 at 1:38pm by PsyDAG

Stor 155
Think of the mean as a fulcrum (balance point) of a distribution. To balance, the weights and distances from the fulcrum must be equal, therefore subtracting one side from the other will always = 0 (assuming that you did your calculations correctly).
Thursday, August 30, 2012 at 1:38pm by PsyDAG

IMPOSSIBLE ALGEBRA >:(
I have this word problem that I can't figure out. The problem is: A 15 lb weight is positioned 10 in. form a fulcrum. At what distance from the fulcrum must a 12 lb weigt be positioned to keep the scale balanced? The substitute that I had today said that the 12 lb. weight ...
Wednesday, August 27, 2008 at 6:10pm by Tiffany

Science
One of the functions of some machines is to multiply a force. An example would be a lever, in which the force that you apply to an object close to the fulcrum is much greater than the force spplied with your hand, farther from the fulcrum.
Saturday, May 10, 2008 at 1:06am by drwls

Physics
Let the heavier child be x meters from the fulcrum. The lighter child will be 2.5 - x meters from the fulcrum. For equilibrium, 437.7 x = 237.1 (2.5 -x) Solve for x. 674.8 x = 592.75 x = 0.88 m
Wednesday, April 2, 2008 at 9:28pm by drwls

Physics
The distance to the effort point to the fulcrum is six times farther than the distance from the fulcrum to the load. That comes from the definition of mechanical advantage, or force ratio = lever arm length ratio
Saturday, September 27, 2008 at 10:54pm by drwls

Physics
No, you may not add the two masses the 25 grams is 40 cm from the fulcrum the 120 grams is 25 cm from the fulcrum so on that side you have 25* 40 + 120 * 25 = 4000 That is NOT the same as 145 * 40 !!! on the other side you have 500 grams a distance "x" from the fulcrum so 500 ...
Thursday, December 6, 2007 at 7:54pm by Damon

physics
Don't you mean the fulcrum was 36.75 cm from the end with the 200 g mass? Or do you mean the center of mass of meterstick and both weights (together) is at 36.75 cm? That would also make sense. Whether it is balanced or not depends upon where the fulcrum is. The center of mass...
Saturday, January 28, 2012 at 9:17pm by drwls

Math word problem
I have this word problem that I can't figure out. The problem is: A 15 lb weight is positioned 10 in. form a fulcrum. At what distance from the fulcrum must a 12 lb weigt be positioned to keep the scale balanced? The substitute that I had today said that the 12 lb. weight ...
Wednesday, August 27, 2008 at 8:46pm by Tiffany

Physics
Let m be the unknown mass and M be the stick's mass. Stick length = L . The center of mass is L/6 from the fulcrum. The total moment about the fulcrum is zero. m*g*(L/3) = M*g*(L/6) m = M/2 = 60 g
Sunday, May 20, 2012 at 9:17am by drwls

math
Two boys weighing 60 pounds and 80 pounds balance a seesaw. How many feet from the fulcrum must the heavier boy sit if the lighter boy is 8 feet from the fulcrum ?
Thursday, August 15, 2013 at 9:09pm by Tomas

Kinesiology
Joey weighs 77 lb and sits on a seesaw at a distance of 30 inches from the fulcrum. Jenny weighs 67 lb and sits on the opposite side of the seesaw at a distance of 48 inches from the fulcrum. Mikey weighs 30 lb and wants to play but doesn’t know where to sit in order to make ...
Sunday, December 5, 2010 at 8:51pm by Jessi

Physics
If the fulcrum is displaced 1 cm away from unknown mass M, the reference mass m that balances M satisfies the relation: 24m = 26 M m = 13/12 M If the fulcrum is in the correct place in the middle, M = m. The person who is buying a mass M will be charged for a mass m, the ...
Friday, December 10, 2010 at 3:48am by drwls

Physics
This is how the problem starts out: A meter stick is placed with the fulcrum at the 50-cm mark. If a 120-g mass is placed at the 25-cm mark and a 25-g mass at the 10-cm mark, where should a 500-g mass be placed to balance the system? I thought that since the two masses (the ...
Thursday, December 6, 2007 at 7:54pm by Emily

SCIENCE
the brachialis is a short stout muscle inserting cloes to the fulcrum of the elbow joint' the brachioradialis is a slender muscle inserting distally, well way from the fulcrum of the elbow joint. Which is a mechanical advantage and which is a disadvantage
Tuesday, November 22, 2011 at 9:34pm by Katie

Physics
Engineering 100 Homework Problem #1 Below is a diagram of a beam supported on the left end by a pin connection, and toward the right side by a simple fulcrum. A force F is applied to the far right end of the beam as shown. The uniform beam has mass, m, length, l, and the ...
Tuesday, September 27, 2011 at 1:41am by Jamie

college physics
Arthur (mass 78 kg) and Violet (mass 31 kg) are trying to play on a seesaw. If Violet sits 3.6 m from the fulcrum, at what distance from the fulcrum should Arthur sit?
Wednesday, October 13, 2010 at 9:48pm by Alexis

physics
The word "which" in your question should probably be "with". Let x be the distance, in cm, of the fulcrum from the end with the 80 N weight. Since there is equilibrium, the total moment about the fulcrum is zero, and 80 x - 100(100 - x) + 50*(50 - x) = 0 130 x = 10,000 -2500...
Saturday, March 9, 2013 at 9:41pm by drwls

physics
I dont know what "to the balance" means. Do you mean the fulcum to the load? summing moments about the "one end" down forces=40+60=100kg up forces at the fulcrum 100kg summing moments about the end. 40(2.4/2)+60x-100y=0 where x is the distance from the end to the load, and y ...
Sunday, September 23, 2012 at 9:11am by bobpursley

physics
3. A man lifts various loads with the same lever. The distance of the applied force from the fulcrum is 1.00 m, and the distance from the fulcrum to the load is 0.250 m. What is the mechanical advantage of the lever? What is the ideal mechanical advantage of the lever? What is...
Wednesday, June 8, 2011 at 10:32am by Tim

physics
A man lifts various loads with the same lever. The distance of the applied force from the fulcrum is 1.00 m, and the distance from the fulcrum to the load is 0.250 m. What is the mechanical advantage of the lever? What is the ideal mechanical advantage of the lever? What is ...
Wednesday, June 8, 2011 at 10:32am by Tim

science
A man lifts various loads with the same lever. The distance of the applied force from the fulcrum is 1.00 m, and the distance from the fulcrum to the load is 0.250 m. What is the mechanical advantage of the lever? What is the ideal mechanical advantage of the lever? What is ...
Wednesday, June 8, 2011 at 3:00pm by Anonymous

Equilibrium
A lever 9.000 m in length has the fulcrum placed at one end. A load of 26.000 kN is applied to a point 2.200 m from the fulcrum. What force must be applied to the end of the lever to place the system in equilibrium?
Thursday, April 11, 2013 at 10:11pm by Ken

Kinesiology
Take moments about the fulcrum, and assume Mikey sits on Joey's side. If the distance turns out negative, go to the other side. =====J=======M=======Δ=======Jen====== Take moments about the fulcrum, clockwise=positive 67*48 - (77*30 + 30*x ) = 0 Solve for x
Sunday, December 5, 2010 at 8:51pm by MathMate

Physics??
Two children sit 2.60 m apart on a very low-mass horizontal seesaw with a movable fulcrum. The child on the left has a mass of 29.0 kg, and the child on the right has a mass of 38.0 kg. At what distance, as measured from the child on the left, must the fulcrum be placed in ...
Sunday, December 19, 2010 at 6:45pm by starry

PreCalculus
Two children are playing on the seesaw. THe lighter child is 9 feet from the fulcrum, and the heavier child is 6 feet from the fulcrum. As the lighter child goes from the ground to the highest point, she travels through an angle of 35 degrees in 1/2 second. a. find the angular...
Monday, November 19, 2007 at 6:01pm by John

PRECALC HELP!!
Two children are playing on the seesaw. THe lighter child is 9 feet from the fulcrum, and the heavier child is 6 feet from the fulcrum. As the lighter child goes from the ground to the highest point, she travels through an angle of 35 degrees in 1/2 second. a. find the angular...
Monday, November 19, 2007 at 6:37pm by John

physics
Susie and Sally are seated on opposing sides of a seesaw. Sally weighs 500 N and is seated a distance of 2 m from the fulcrum (point of rotation). Susie weighs 450 N and is seated a distance of 2.5 m from the fulcrum. Who is being lifted upward?
Wednesday, March 20, 2013 at 9:14am by Jessica

physical science
I gave you the answer. I assume, now, that you don't have numbers to plug into the equation. But you should figure out from the equation, that qualitatively, the fulcrum must be moved toward the adult. A__________x_________C Adult goes down. Child goes up. So you move the ...
Sunday, March 15, 2009 at 11:43pm by DrBob222

torque
A meterstick is found to balance at the 49.7 cm mark when placed on a fulcrum. When a 50.0g mass is attached at the 10.0cm mark, the fulcrum must be moved to the 39.2 cm mark for balance. What is the mass of the meterstick? All of the problems ive been doing i needed to find ...
Tuesday, June 22, 2010 at 11:49am by sar

PHYSICS
A box is lifted with a pry bar, by slipping the bar under the box and lifting up on the bar. If the pry bar is 2m in length and it is grasped at the end, and the box is located at the opposite end, the fulcrum, with its center of gravity at a distance of 0.5 m from the fulcrum...
Sunday, March 6, 2011 at 11:45pm by DMITRIC

PHYSICS
A box is lifted with a pry bar, by slipping the bar under the box and lifting up on the bar. If the pry bar is 2m in length and it is grasped at the end, and the box is located at the opposite end, the fulcrum, with its center of gravity at a distance of 0.5 m from the ...
Monday, March 7, 2011 at 10:58am by CHRIST

physics
Two children seat themselves on a seesaw, the one on the left has a weight of 400N whlie the one on the right weighs 300N. The fulcrum is at the midpoint of the seesaw, if the child on the left is not at the end but is 1.5m from the fulcrum, and the seesaw is balanced, what is...
Tuesday, November 9, 2010 at 9:08pm by James

physics
A small 5.00 kg brick is released from rest 3.00 m above a horizontal seesaw on a fulcrum at its center, with a radius of 1.60 m. Find the angular momentum of this brick about a horizontal axis through the fulcrum and perpendicular to the plane of the figure the instant the ...
Monday, November 2, 2009 at 7:49pm by AE

physics
A man lifts various loads with the same lever. The distance of the applied force from the fulcrum is 2.00 m and the distance from the fulcrum to the load is 0.500 m. A graph of resistance force vs. effort force is shown. What is the mechanical advantage of the lever? What is ...
Wednesday, March 20, 2013 at 5:55pm by Rachel

physics
A small 5.00kg brick is released from rest 2.00m above a horizontal seesaw on a fulcrum at its center, as shown in the figure below . (radius of horizontal seesaw is 1.6m) a.)Find the angular momentum of this brick about a horizontal axis through the fulcrum and perpendicular ...
Tuesday, December 15, 2009 at 11:54pm by Anonymous

Physics
A man pulled a nail our of a board with a crowbar. The nail was 2 in. from the fulcrum of the crowbar, and the effort applied was 36 in. from the fulcrum. If the theoretical effort applied was 10 lb., what was the force of friction between the board and the nail? How far did ...
Monday, June 23, 2008 at 9:38am by Kayla

Physics*
A meter stick is found to balance at the 49.7-cm mark when placed on a fulcrum. When a 70.0-gram mass is attached at the 16.0-cm mark, the fulcrum must be moved to the 39.2-cm mark for balance. What is the mass of the meter stick? Answer in grams
Thursday, October 20, 2011 at 12:38pm by Allie

Calculus
The seesaw principle: As you probably know, any two persons can balance each other when sitting on opposite sides of a seesaw, regardless of their weights. It is only necessary that each person contribute the same moment — calculated by multiplying the person’s weight ...
Sunday, April 8, 2012 at 9:08am by chamy

11th grade
Since the stick by itself is unbalanced with the fulcrum off center, the weight must be placed on the short (40 cm) side. Let x be the distance of the 1 N weight from the fulcrum, measured toward the short end, in cm. The stick's weight acts at the center of mass at x = -10 cm...
Tuesday, October 19, 2010 at 8:14am by drwls

Physic
Three balls are attached to a light rigid rod, as shown in the figure. A fulcrum is located at xf = 18.0 cm measured from the left end of the rod. Ball A has mass mA = 65 g and is located at xA = 3 cm. Ball B has mass mB = 12 g located at xB = 22 cm. Ball C has mass mC = 22 g ...
Thursday, March 3, 2011 at 1:24pm by panda

PHYSICS please HELP
A box is lifted with a pry bar, by slipping the bar under the box and lifting up on the bar. If the pry bar is 2m in length and it is grasped at the end, and the box is located at the opposite end, the fulcrum, with its center of gravity at a distance of 0.5 m from the fulcrum...
Wednesday, March 9, 2011 at 2:16am by DMITRIC

Physics, Please Help
A homeowner is trying to move a stubborn rock from his yard which has a mass of 1025 kg. By using a lever arm (a piece of wooden board) and a fulcrum (or pivot point) the homeowner will have a better chance of moving the rock. The homeowner places the fulcrum 24.4 cm from the ...
Sunday, November 25, 2012 at 7:02pm by Mike

physics
A fulcrum is placed under the center of a uniform 4.00m long, 3.00kg board. Child A has a mass of 42 kg. This child sits on the left end of the board; Child B has a mass of 26kg. Child B sits on the right end of the board. Where should child C (mass 21 kg) sit in order to have...
Sunday, November 4, 2012 at 4:39pm by Joe

physics
A uniform, 264-N rod that is 2.05 m long carries a 225-N weight at its right end and an unknown weight W toward the left end. When W is placed 47.9 cm from the left end of the rod, the system just balances horizontally when the fulcrum is located 82.7 cm from the right end. ...
Tuesday, April 2, 2013 at 4:35pm by Matt

Science (simple machines)
The plank is 3.6 metres long. It is being used as a lever to lift a 40-kilogram box. This represents a load of 400 newtons. (a) If the fulcrum were placed in the centre of the plank, what downward effort would the man on the right need to apply to raise the box? (b) If the man...
Sunday, June 10, 2012 at 12:58pm by Kate

physics
A NON-UNIFORM board of length L and mass M has a center of mass at 5/6L. If the fulcrum is placed at the center of the board and a block of mass m is placed at the right of the board, then where must a block of mass 3m be placed to balance the board? I assumed new variables ...
Thursday, November 15, 2012 at 2:50am by min

science
Are you thinking of fulcrum?
Sunday, April 6, 2008 at 9:57pm by DrBob222

physics
The fulcrum is at 36.75
Saturday, January 28, 2012 at 9:17pm by Ken

physic
They adjust the distance from the fulcrum
Wednesday, January 15, 2014 at 7:09am by bobpursley

Chemistry
Set up a 2nd class lever (Fulcrum at one end, Effort at the other end and Load in the middle. Pull the effort end using a fixed pulley with the nitinol wire replacing the string. If the nitinol wire gets kinky, try heating or cooling it and observe what happens. Not sure if ...
Saturday, April 11, 2009 at 7:06pm by GK

Science
The load is in between the fulcrum and the force, class 2
Thursday, April 16, 2009 at 7:52pm by bobpursley

physical science
massadult*lengthtofulcrum = mass child*lengthto fulcrum.
Sunday, March 15, 2009 at 11:09pm by DrBob222

physics
Equate moments about fulcrum: 23*1.5=21*x Solve for x.
Tuesday, February 28, 2012 at 10:26am by MathMate

Physic
an "extended object" is in balance when the center of mass is located directly over the fulcrum. By using a test mass mT placed at various points xT on the object (as measured from some fixed reference point), a linear relationship between xT and the fulcrum location xF is ...
Thursday, March 3, 2011 at 1:25pm by panda

Statistics
Think of the mean as a fulcrum (balance point) for a distribution of scores. I hope this helps.
Thursday, December 17, 2009 at 10:45am by PsyDAG

math
To balance a see saw how do you figure how far from the fulcrum should you put the weight.
Wednesday, January 11, 2012 at 7:11pm by Kim

Physics
1. Suspend the meter stick by a string from its center. 2. Notice carefully where it balances. It probably will not balance exactly at 50 cm. All distances must be measured to this point (called the fulcrum). 3. Hang a 200 g mass on one side and a 50 g mass on the other and ...
Tuesday, January 1, 2013 at 12:28pm by Marilyn

Physics
No. The lever distance is from the point of force to the fulcrum. Here, it is 4 m (not five meters as you did). 400*4=torque= W*1 W= 1600N
Wednesday, November 7, 2007 at 5:06pm by bobpursley

Algebra
The hint says it all: 45x = 38(10-x) solve for x. Now, decide which child is "x" from the fulcrum.
Wednesday, May 9, 2012 at 11:31pm by Steve

Physics
"Calculator" is a noun. I suspect you meant to wrote the verb "calculate". To get the weight, set the moment about the fulcrum e
Friday, October 12, 2012 at 12:53am by drwls

Physics
"Calculator" is a noun. I suspect you meant to wrote the verb "calculate". To get the weight, set the moment about the fulcrum e
Friday, October 12, 2012 at 12:53am by drwls

Physics
1. Suspend the meter stick by a string from its center. 2. Notice carefully where it balances. It probably will not balance exactly at 50 cm. All distances must be measured to this point (called the fulcrum). 3. Hang a 200 g mass on one side and a 50 g mass on the other and ...
Wednesday, January 2, 2013 at 6:25pm by Marilyn

physics
7*10.9 = M*35.9 Solve for M The two numbers above are the distances of the masses from the fulcrum at the 50 cm midpoint location.
Thursday, November 3, 2011 at 7:24pm by drwls

Science
You mean "fulcrum", "lever arm", "moment or torque", "mechanical advantage" for example ? If so Google each of those words as well as "simple machines".
Friday, May 3, 2013 at 7:20pm by Damon

PHYSICS
Particles 1 and 2, each of mass m, are attached to the ends of a rigid massless rod of length L1 + L2, with L1 = 19 cm and L2 = 75 cm. The rod is held horizontally on the fulcrum and then released. What is the magnitude of the initial acceleration of particle 1? What is the ...
Saturday, March 24, 2007 at 6:35pm by Calvin

Physics
x is distance from fulcrum for Bob. Then 5-x = distance for Sally. 200*x = 40*(5-x) Solve for x and 5-x.
Saturday, September 27, 2008 at 11:12pm by DrBob222

Physics
Half the distance from fulcrum (center) to the end, which is 5 m from the end. At that point, the moments are balanced.
Monday, October 24, 2011 at 12:57am by drwls

Physics!!! :)
Summing moments is the key. the cg is five ft from the end, so where is the fulcrum (edge of cliff)? 78*g*d-180g(5-d)=0 solve for d, the distance the beam overhangs.
Tuesday, January 5, 2010 at 11:33pm by bobpursley

physics
http://www.chegg.com/homework-help/questions-and-answers/bars-equilibrium-2-m-long-weighing-92-n-string-pullingdown-bars-attached-04-m-fulcrum-left-q1768975
Friday, December 21, 2012 at 12:45am by Elena

Science
A lever has a 9-N load 1.5m from the fulcrum. Where should a 0.5N effort force be applied to balance the load?
Friday, February 17, 2012 at 1:08pm by Micheal

Physics
A lever has a 9-N load 1.5m from the fulcrum. Where should a 0.5N effort force be applied to balance the load?
Friday, February 17, 2012 at 5:51pm by Micheal

physics
Forces of 1,5,3, and F newtons are applied to a weightless board that rests on a fulcrum. The board doesn't rotate-what's the magnitude of the force F?
Thursday, May 24, 2012 at 6:15pm by Jen

Physics
Oops, I meant the 500g mass is placed at 58 cm. I was thinking fulcrum because of my next problem, and I got the two terms mixed in my head. Thanks again!
Thursday, December 6, 2007 at 7:54pm by Emily

Physics
Bob (200kg) and Sally (40kg) want to make a see saw that will balance when they are both on 8it. If the board they have is 5m long, where should the fulcrum be placed?
Saturday, September 27, 2008 at 11:12pm by Hannah

physics
Think of kids on a see-saw. In order for the kids to balance, the heavier one must sit closer to the fulcrum.
Tuesday, February 21, 2012 at 12:17pm by Steve

Physics
If you want to make it more simple !!, here's another answer. By newtons first law, the sum of all static forces at a balanced system is zero. Otherwise it will be moving...!!! Add all vertical forces: Here you have to consider a hidden force R form Reaction at support in ...
Wednesday, November 7, 2007 at 5:06pm by Joy

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