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April 17, 2014

Search: A 77 kg adult sits at one end of a 8.9 m long board. His 30 kg child sits on the other end. Where should the pivot be placed so that the board is balanced, ignoring the board's mass?

Number of results: 133,922

PHYSICS
A 74 kg adult sits at one end of a 8.5 m long board. His 35 kg child sits on the other end.Where should the pivot be placed so that the board is balanced, ignoring the board's mass?
Tuesday, April 20, 2010 at 1:46am by JP

physics
A 82 kg adult sits at one end of a 8.6 m long board. His 23 kg child sits on the other end. Where should the pivot be placed so that the board is balanced, ignoring the board's mass? Find the pivot point if the board is uniform and has a mass of 15 kg. Please help with step-by...
Monday, April 5, 2010 at 6:49pm by Anonymous

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
Two people are holding up the ends of a 4.40-kg wooden board that is l = 1.60 m long. A m = 7.00-kg box sits on the board, 0.50 m from one end, as shown below. What forces do the two people exert?
Wednesday, January 2, 2013 at 5:13pm by Jamison

Physics
A sturdy wooden board, 4.0 meters long and with a mass of 32 kg, rests on two supports (labeled L and R) placed 1.2 m from each end as shown in the figure below. (a) Suppose that a man with a mass of 60 kg stands at the center of the board (point a). What are the upward forces...
Tuesday, November 16, 2010 at 4:52pm by Sam

physics
A box sits on a horizontal wooden board. The coefficient of static friction between the box and the board is 0.41. You grab one end of the board and lift it up, keeping the other end of the board on the ground. What is the angle between the board and the horizontal direction ...
Thursday, February 17, 2011 at 10:22am by melad

physics
A box sits on a horizontal wooden board. The coefficient of static friction between the box and the board is 0.22. You grab one end of the board and lift it up, keeping the other end of the board on the ground. What is the angle between the board and the horizontal direction ...
Thursday, September 22, 2011 at 4:32pm by abbie

physics
A 59 kg diver stands at the end of a 32 kg springboard, the spring board is 3 m long. The board is attached to a hinge at the left end, but simply rests on the right support which is half way along the board. What is the magnitude of the vertical force exerted by the hinge on ...
Thursday, December 9, 2010 at 11:05pm by rosie

physics
a person stands a distance of 0.300 meters from the right end of a 2.00 meter long uniform platform that is supported by two posts, one at each end. The board has a mass of 20.0 kg and the person's mass is 75.0 kg. a. determine the force exterted on the board by the post on ...
Tuesday, January 20, 2009 at 3:53pm by bob

Physics
a person stands a distance of 0.300 meters from the right end of a 2.00 meter long uniform platform that is supported by two posts, one at each end. The board has a mass of 20.0 kg and the person's mass is 75.0 kg. a. determine the force exterted on the board by the post on ...
Monday, January 17, 2011 at 5:04pm by Sara

physics
a person stands a distance of 0.300 meters from the right end of a 2.00 meter long uniform platform that is supported by two posts, one at each end. The board has a mass of 20.0 kg and the person's mass is 75.0 kg. a. determine the force exterted on the board by the post on ...
Tuesday, January 20, 2009 at 9:10pm by bob

physics
A 2.00-m-long diving board of mass 12.0 kg is 3.00 m above the water. It has two attachments holding it in place. One is located at the very back end of the board, and the other is 25.0 cm away from that end. 1-Assuming that the board has uniform density, find the forces ...
Wednesday, April 24, 2013 at 10:15pm by NaNa

physics
person stands a distance of 0.300 meters from the right end of a 2.00 meter long uniform platform that is supported by two posts, one at each end. The board has a mass of 20.0 kg and the person's mass is 75.0 kg. a. determine the force exterted on the board by the post on the...
Tuesday, January 20, 2009 at 7:20pm by bob

physics
A person is standning on the end of a diving board as shown. The diving board is held in place by two supports. The person has a mass of 60 kg. The diving board has a mass of 30 kg. The supports are 1.5m away from eachother. The diving board is 4m long, with the person on the ...
Sunday, November 4, 2007 at 11:55pm by Anonymous

Physics
A common demonstration, illustrated below, consists of a ball resting at one end of a board of length and elevated at an angle . A light cup is attached to the board at r so that it will catch the ball when the support stick is suddenly removed. (a) Show that the ball will ...
Wednesday, November 18, 2009 at 5:47pm by Ciel

Physics 203
A 5m long diving board of negligible mass is supported by two pillars. One pillar is at the end of left of the diving board, the other is 1.50m away. Find the forces exerted by the pillars when a 90kg diver stands at the far end of the board.
Tuesday, April 9, 2013 at 5:24pm by ash

Physics
A stationary 3.0-m board of mass 6.0 kg is hinged at one end. A force is applied vertically at the other end, and the board makes a 30 angle with the horizontal. A 40-kg block rests on the board 80 cm from the hinge as shown in the figure below. a) Find the magnitude of the ...
Thursday, April 28, 2011 at 9:55am by Kayla

Physics
You stand at the end of a long board of length L. The board rests on a frictionless frozen surface of a pond. You want to jump to the opposite end of the board. What is the minimum take-off speed v measured with respect to the pond that would allow you to accomplish that? The ...
Monday, July 1, 2013 at 5:24pm by Anonymous

physics please help!!
A diver stands on the end of a diving board as shown in the figure on the right. The mass of the diver is 58 kg and the mass of the uniform diving board is 35 kg. Calculate the magnitudes and directions of the forces exerted on the board at the points A and B. (A & B are 1 ...
Monday, March 24, 2014 at 7:11pm by Bobby

Momentum and impulse
You stand at the end of a long board of length L. The board rests on a frictionless frozen surface of a pond. You want to jump to the opposite end of the board. What is the minimum take-off speed v measured with respect to the pond that would allow you to accomplish that? The ...
Monday, July 1, 2013 at 4:54pm by Anonymous

physics
A 70 kg painter is painting the wall of a building. He stands on a horizontal board of length 4.7 m and mass 15 kg, suspended from vertical ropes attached to each end. If the painter stands 2.0 m from one end of the board, what would the tensions in the ropes be? Near rope: ...
Saturday, December 11, 2010 at 4:43pm by devin

physics
A 64.0 kg person stands on a lightweight diving board supported by two pillars, one at the end of the board, the other 1.20 m away from the end. The pillar at the end of the board exerts a downward force of 829 N. How far from the pillar at the end of the board is the person ...
Thursday, May 31, 2007 at 12:19pm by micole

physics
A 5 m long see saw has a child whose mass is 25 kg sitting on one end. How far in meters from the center should a 70 kg adult sit on the opposite side for the see saw to balance?
Tuesday, June 8, 2010 at 2:08pm by bob

Physics
A diver stands at rest at the end of a massless diving board as shown in Figure P8.16. (a) If the mass of the diver is 161 kg, and the board is 4 m long, what is the torque due to gravity on the diving board? I was thinking that T=Frsin(theta)... but I can't seem to get it ...
Tuesday, October 11, 2011 at 12:06am by Please Help!!!

physics
Two people carry a heavy electric motor by placing it on a light board 2.00 m long. One person lifts at one end with a force of 400.0 N, and the other lifts at the opposite end with a force of 600.0 N. What is the weight of the motor? and where along the board is the center of...
Monday, November 9, 2009 at 3:26pm by Student1

Physics
In the diagram below, how far from the end of the board can a 60 kg person walk before it will tip over? The mass of the board is 100 kg, and a 2-meter section of its 6-meter length hangs over the edge. Assume that the entire mass of the board acts at the center of the board.
Thursday, December 6, 2012 at 3:19pm by Austin J

Physics
Little Norma has mass 20kg and wants to use a 4.0-m board of mass 10kg as a seesaw. Her friends are busy, so Little Norma seesaws by herself by putting the support at the system's center of gravity when she sits on one end of the board. How far is she from the support point?
Tuesday, June 8, 2010 at 10:41pm by Ashley

Physics
A diver stands on the end of a diving board as shown in the figure on the right. The mass of the diver is 58 kg and the mass of the uniform diving board is 35 kg. Calculate the magnitudes and directions of the forces exerted on the board at the points A and B. A and B are 1m ...
Monday, March 24, 2014 at 4:39pm by Bobby

PHYSICS
Just take the torque from where the adult sits. So it will be: 0 = (Force of the pivot)*(x) - (25)*(g)*(9). The force of the pivot can be calculated by taking the total force on the board. Which is (the force of the pivot) - (The adult's weight) - (The child's weight).
Tuesday, April 20, 2010 at 1:46am by Julius- J

math
you hav three boards and one board is 48" long .and the one board btween the top and bottom board is 2and 1/2" long. how many boards will it take to cover those 2 boads
Thursday, March 15, 2012 at 1:42pm by Anonymous

Physics
A diver (mass = 75.0 kg) walks to the end of a flexible diving board. The end of the board bends down a distance of 0.55 m. The diver's weight on the diving board makes it behave like a spring. a) Determine the spring constant of the diving board. b) Calculate the diver's ...
Monday, January 14, 2013 at 4:50pm by Shanelle

physics
A cat walks along a uniform plank that is 4 m long and has a mass of 7 kg. The plank is supported by two sawhorses, one 0.44 m from the left end of the board and the other 1.5 m from its right end. When the cat reaches the right end, the plank just begins to tip. What is the ...
Sunday, May 20, 2012 at 4:27am by Tom

physics
notice the mass of the board and loads are (massboard+82+15) One can start anywhere, let the end with the adult be zero. Sum moments about that end. boardweight*4.3+23g*8.6-piviotlength*(massboard+loads)=0 lets solve it... 15*g*4.3+23*4.6-(massboard+82+23)g=0 the first part ...
Monday, April 5, 2010 at 6:49pm by bobpursley

physics
A thin 2 kg box rests on a 6 kg board that hangs over the table. the length of the board on the table is 30 cm and the length of the board hanging off the table is 20 cm. How far can the center of the box be from the end of the table before the board begins to tilt? I dont ...
Saturday, June 19, 2010 at 5:33pm by Anonymous

physics
A diving board length = 6.00 m that weighs 210 N is supported by two pillars. One pillar is at the left end of the diving board, as shown below; the other is distance d = 1.60 m away.Find the magnitude of the force exerted by the left pillar when a 90.0 kg diver stands at the ...
Saturday, November 27, 2010 at 4:42pm by Cerra

math
a board is 17ft long and a hole is 1 ft futher from 1 end than it is from the other. How far is the hole from each end of the board shortest distance? Choices 6,8,10
Wednesday, June 13, 2012 at 5:55pm by bobby

physics
a 60 kg object is attached to one end of a 40 kg steel tube 2.4 m long. what is the distance from the loaded end to the balance?
Sunday, September 23, 2012 at 9:11am by jane

physics
A man who weighs 50.0 N stands 3.00 m from the right end of a board that is supported by two vertical cords attached to either end of the board. The board is 5.00 m long and weighs 10.0 N. What is the tension in each of the two cords?
Sunday, November 7, 2010 at 11:19pm by ashley

math
a board is 17ft long and a hole is 1 ft futher from 1 end than it is from the other. How far is the hole from each end of the board shortest distance? Choices 6,8,10 Ms Sue posted 8 how did you get that answer? can you show me?
Wednesday, June 13, 2012 at 6:01pm by bobby

Physics
A child sits on one side of a teeter totter of length 7.60 m, a distance of 49.7 cm away from the end of the beam. The child has a mass of 21.6 kg. Her mother has a mass of 43.6 kg. How far away from her end does she have to sit in order for the teeter tooter to be exactly ...
Monday, December 17, 2007 at 10:33pm by Courtney

College Physics
One end of a 14 m long wire having a total mass of .8000 kg is fastened to a fixed support in the ceiling, and a 7.50 kg object is hung from the other end. If the wire is struck a transverse blow at one end, how much time does the pulse take to reach the other end? neglect the...
Thursday, November 1, 2007 at 2:43pm by Jen

physics
Suppose a 34.5-kg child sits 1.17 m to the left of center on the same seesaw as the problem you just solved in the PRACTICE IT section. A second child sits at the end on the opposite side, and the system is balanced.
Friday, November 9, 2012 at 7:36pm by sarah

physics
You jump from the end of a diving board that is 3 meters above the water. You spring upward from the end of the board with an initial velocity of 5 m/s. How long are you in the air? What is the speed as you hit the water? I need to know the steps in solving the problem. Thanks!
Friday, September 7, 2007 at 2:06am by Jaclyn

Physics Help NOW!
A 64 kg woman stands on a very light, rigid board that rests on a bathroom scale at each end. She is 1.5m in on the 2m board. What is the reading on each of the scales in kg? Homework is almost due and I cant figure this out!!!!
Tuesday, August 2, 2011 at 5:20pm by collegechick

Physics
A child sits on one side of a teeter totter of length 7.60 m, a distance of 49.7 cm away from the end of the beam. The child has a mass of 21.6 kg. Her mother has a mass of 43.6 kg. How far away from her end does she have to sit in order for the teeter tooter to be exactly ...
Thursday, December 20, 2007 at 4:00pm by Cmoney

Physics HELP!
A 650 N boy and a 490 N girl sit on a 150 N porch swing that is 1.70 m long. If the swing is supported by a chain at each end, what is the tension in each chain when the boy sits .75 m from one end and the girl .5 m from the other end?
Sunday, December 5, 2010 at 10:22pm by Jennifer

Need help now Please!
A 64 kg woman stands on a very light, rigid board that rests on a bathroom scale at each end. She is 1.5m in on the 2m board. What is the reading on each of the scales in kg? Homework is almost due and I cant figure this out!!!!
Tuesday, August 2, 2011 at 6:07pm by Helppp

physics
A scaffold (a uniform horizontal board of mass 50 kg and length 4 m) is supported by a rope at each end. A 100 kg painter stands on the scaffold at a location such that the tension is one rope is four times that in the other. Where is the painter standing (specify clearly the ...
Tuesday, February 11, 2014 at 9:15pm by Anonymous

math
NOTE: this is for advanced functions, NOT physics A 2m length of board rests with one end on the floor and the other end on a small stack of bricks. A baseball is rolled up the board and back down again in a total of 4 seconds. The farthest the baseball reached on the board ...
Thursday, March 14, 2013 at 1:33pm by Elbert

Physics
A woman who weighs 500N stands on an 8.0-m-long board that weighs 100N. The board is supported at each end. The support force at the right end is 3 times the support force at the left end. How far from the right end is the woman standing?
Tuesday, June 8, 2010 at 10:42pm by Ashley

physics
A board that is 20 cm wide, 5 cm thick, and 3 m long has a density of 350 kg/m^3. The board is floating partially submerged in water do density 100 kg/m^3. What fraction of the volume of the board is floating above water?;
Saturday, July 13, 2013 at 8:49pm by David

arithmetic
a board 2 yards long. If 6 inches from one end was cut off. How many inches long was the shelf.
Monday, March 5, 2012 at 7:56pm by Betty

Physics
A 5.80 kg ball is dropped from a height of 14.5 m above one end of a uniform bar that pivots at its center. The bar has mass 9.00 kg and is 6.40 m in length. At the other end of the bar sits another 5.30 kg ball, unattached to the bar. The dropped ball sticks to the bar after ...
Thursday, April 5, 2012 at 10:35am by Joe

physics
A brother (mass 20 kg) and his big sister (mass 32 kg) want to play on a teeter-totter. The beam is 7 m long and has a mass of 41 kg. Suppose the brother sits at the end of his side, 3.5 m away from the pivot point. How far away from the pivot point does the sister need to ...
Monday, December 10, 2012 at 7:00pm by Josh

physics
A 58-kg astronaut inside a 9-m-long space capsule of mass 550 kg is floating weightlessly on one end of the capsule. He kicks off the wall at a velocity of 3.6 m/s toward the other end of the capsule. How long does it take the astronaut to reach the far wall?
Tuesday, June 12, 2012 at 12:55am by lanre

Physics
A 69.5 kg painter is on a uniform 30.0 kg scaffold supported from above by ropes . There is a 5.0 kg pail of paint to one side, as shown. The scaffold is 6 m long. 1.0 m on both ends and 4 m in the middle. From the left end at 1.0 m to the pail is 1.0 m. How close to the end ...
Wednesday, November 3, 2010 at 3:11pm by Nate

chem
the RDA of the amino acid lysine is 12 mg per kg of body weight. How many grams per day should a 77.0 kg adult receive?
Tuesday, January 31, 2012 at 9:37pm by lou

physics
A 90 kg fisherman at one end of a 3 m long 150 kg rowboat walks to the other end. To someone standing on the shore, what distance does the rowboat move relative to its initial position
Sunday, November 3, 2013 at 11:42pm by Kurt

Physics
You pick up a board of length 2.60 m and mass 13.00 kg. To do this, you exert a force upward with your left hand a distance LL=0.754 m from the left end of the board and you need to exert a force with your right hand a distance LR=0.264 m from the left end of the board. Assume...
Monday, February 6, 2012 at 1:53pm by Anonymous

physics
You pick up a board of length 2.60 m and mass 13.00 kg. To do this, you exert a force upward with your left hand a distance LL=0.754 m from the left end of the board and you need to exert a force with your right hand a distance LR=0.264 m from the left end of the board. Assume...
Monday, February 6, 2012 at 1:53pm by Dan

physics
You pick up a board of length 2.60 m and mass 13.00 kg. To do this, you exert a force upward with your left hand a distance LL=0.754 m from the left end of the board and you need to exert a force with your right hand a distance LR=0.264 m from the left end of the board. Assume...
Monday, February 6, 2012 at 11:19pm by Anonymous

physics
You pick up a board of length 2.60 m and mass 13.00 kg. To do this, you exert a force upward with your left hand a distance LL=0.754 m from the left end of the board and you need to exert a force with your right hand a distance LR=0.264 m from the left end of the board. Assume...
Monday, February 6, 2012 at 11:19pm by Anonymous

physics
You pick up a board of length 2.60 m and mass 13.00 kg. To do this, you exert a force upward with your left hand a distance LL=0.754 m from the left end of the board and you need to exert a force with your right hand a distance LR=0.264 m from the left end of the board. Assume...
Monday, February 6, 2012 at 11:19pm by Anonymous

cambo
180 ft long board is cut into 3 pieces. The second piece of board is twice as long as the first. The third piece of board is six times as long as the first. What is the length of the first piece of the board?
Tuesday, March 1, 2011 at 11:59am by bob

alegebra
A 180 ft long board is cut into 3 pieces. The second piece of board is twice as long as the first. The third piece of board is six times as long as the first. What is the length of the first piece of the board?
Friday, March 18, 2011 at 10:38pm by Anonymous

5th grade math
Derek is building a bird feeder to sell at a crafts fair. He is using a board that is 4 feet long. He will cut one piece that is 2 feet long for the base. Then he will use the rest of the board and cut it into two pieces of equal length for the sides. If he puts the and one of...
Sunday, December 8, 2013 at 10:14pm by Stephon

PHYSICS!
A diver leaves a 3m board on a trajectory that takes her 2.5m above the board and then into the water a horizontal distance of 2.9m from the end of the board. At what speed did she leave the board? At what angle did she leave the board?
Wednesday, September 19, 2012 at 6:07pm by Helpless

Physics
Find the forces exerted by the two supports of a 4.0m, 50-kg diving board when a 60-kg woman stands at its end. The two supports are 0.8m apart. This time consider the mass of the diving board.
Sunday, June 24, 2012 at 2:08pm by J

science-physics
A worker sits at one end of a 183-N uniform rod that is 2.80 m long. A weight of 107 N is placed at the other end of the rod. The rod is balanced when the pivot is 0.670 m from the worker. Calculate the weight of the worker
Wednesday, May 15, 2013 at 1:51am by karen

physics
A gymnast with mass m1 = 47 kg is on a balance beam that sits on (but is not attached to) two supports. The beam has a mass m2 = 118 kg and length L = 5 m. Each support is 1/3 of the way from each end. Initially the gymnast stands at the left end of the beam.
Tuesday, March 29, 2011 at 12:04am by Anonymous

physics
"A one meter board with uniform density, hangs in static equilibrium from a rope with tension T. A weight hangs from the left end of the board 0.2m away in distance. What is the mass of the board"
Friday, July 30, 2010 at 7:08am by jack

physics
A diver of mass 68.9 kg stands at the end of a diving board of mass 24.5 kg and length L = 3.29 m. The diving board is supported at two locations, labeled A and B on the diagram. A and B are separated by a distance d = 0.74 m. Observe normal sign conventions for vertical ...
Wednesday, January 19, 2011 at 5:37pm by Sydney

Physics
A compact 60-kg object is attached to one end of horizontal 40-kg uniform steel tube 2.4m long. What is the distance from the loaded end to the center of gravity of the object-tube system?
Friday, December 7, 2012 at 2:41pm by Kaitlin

physics
Suppose a diving board with no one on it bounces up and down in a simple harmonic motion with a frequency of 3.00 Hz. The board has an effective mass of 10.0 kg. What is the frequency of the simple harmonic motion of a 62.0 kg diver on the board?
Sunday, July 28, 2013 at 9:43pm by Justin

Physics please help!!
A school yard teeter totter with a total length of 5.46 m and a mass of 35.9 kg is pivoted at its center. A 17.7 kg child sits on one end of the teeter totter. Where should a parent push with a force of 272 N in order to hold the teeter totter level?
Friday, March 4, 2011 at 4:03pm by Megan

physics
two people carry a heavy electric motor by placing it on a light board 2m long.one person lifts at one end with a force of 700N, and the other lifts the opposite end with a force of 400N.Calculate the weight of the motor and determine where its center of Gravity is Located
Sunday, April 28, 2013 at 4:11am by Anonymous

physics
two people carry a heavy electric motor by placing it on a light board 2m long.one person lifts at one end with a force of 700N, and the other lifts the opposite end with a force of 400N.Calculate the weight of the motor and determine where its center of Gravity is Located
Sunday, April 28, 2013 at 4:12am by Anonymous

physics
two people carry a heavy electric motor by placing it on a light board 2m long.one person lifts at one end with a force of 700N, and the other lifts the opposite end with a force of 400N.Calculate the weight of the motor and determine where its center of Gravity is Located
Sunday, April 28, 2013 at 4:14am by Anonymous

Math (need formula)
I would be very appreciative if someone could provide me with the formula I would use to plug these figures into a graph. 3. A 2m length of board rests with one end on the floor and the other end on a small stack of bricks. A baseball is rolled up the board and back down again...
Wednesday, May 16, 2012 at 2:13pm by Noel

Phyics
A uniform board is leaning against a smooth vertical wall. The board is at an angle above the horizontal ground. The coefficient of static friction between the ground and the lower end of the board is 0.710. Find the smallest value for the angle , such that the lower end of ...
Sunday, November 10, 2013 at 10:53pm by Bobby

Physics
ohh sorry, in my first question... A 15 kg box sits on a horizontal FORCE. the coefficient of static fricition between the box and the surface is 0.70. if a force P is exerted on the box at an angle directed 37 degrees below the horizontal, what must be the magnitude of P to ...
Monday, August 27, 2012 at 7:42am by Daniella

physics
If a 100 kg adult sits on a first class lever 2 meters away from the axis of rotation...how far back do I need to sit (145 lbs) to balance the lever?
Friday, October 26, 2012 at 2:22pm by Anonymous

physics
a 500 N person stands on a uniform board of weight 100 N and length 8 m. the board is supported at each end. if the support force at the right end is three times that at the left end, how far from the right end is the person? please explain
Sunday, January 4, 2009 at 9:48pm by amanda

physics
Moment of inertia of the board respectively the pivot point is Io = m(L^2 + W^2)/12 = 9.4(4.5^2+0.3^2)/12 = 15.93 kgm^2, Moment of inertia of the system (board+2 point mass-hildren) respectively the pivot point is I = Io + 2mR^2 = 15.93 + 211(4.5/2)^2 = 127.305 kgm^2 An ...
Friday, March 16, 2012 at 10:33pm by Elena

physics
A plank with m=0.12 kg and 50cm long has one mass of m1=0.11kg sitting on one end and a m2=0.055kg at the other end. Where should the pivot point be to balance the plank?
Tuesday, December 11, 2012 at 8:07pm by Betsalel

algrebra 1
A 180 ft long board is cut into 3 pieces. The second piece of board is twice as long as the first. The third piece of board is six times as long as the first. What is the length of the first piece of the board A) 20 ft B) 40 ft C) 60 ft D) 120 ft
Thursday, February 3, 2011 at 1:47pm by AP

physics
Cliff and Will are carrying a uniform 2.0m board of mass 69kg. Will is supporting the board at the end while cliff is 0.6m from the other end as shown in the following figure. Cliff has attached his lunch to his end of the board, and the tension in the string supporting the ...
Thursday, February 23, 2012 at 4:40pm by brett

math
NOTE: this is for advanced functions, NOT physics A 2m length of board rests with one end on the floor and the other end on a small stack of bricks. A baseball is rolled up the board and back down again in a total of 4 seconds. The farthest the baseball reached on the board ...
Thursday, March 14, 2013 at 4:10pm by Thomson

Physics
A diving board length 5.60m that weighs 250N is supported by two pillars. One pillar is at the left end of the diving board, as shown below; the other is distance 1.55m away . Find the magnitude of the force exerted by the left pillar when a 90.0kg diver stands at the far end ...
Wednesday, December 1, 2010 at 4:40am by ree

Phys help!!!!
A diving board length 5.60m that weighs 250N is supported by two pillars. One pillar is at the left end of the diving board,the other is distance 1.55m away . Find the magnitude of the force exerted by the left pillar when a 90.0kg diver stands at the far end of the board. ...
Wednesday, December 1, 2010 at 12:45pm by ree

biomechanics
If a 100 kg adult sits on a first class lever 2.3 meters away from the axis of rotation...how far back do I need to sit (145 lbs) on the other side to balance the lever?
Wednesday, October 23, 2013 at 9:23pm by Anonymous

Physics!
A 20 kg square slab with side lengths 3.0 m rotates around an axis perpendicular to the slab. A particle of mass 0.60 kg sits on each of the corners of the square. Also, a particle of mass 0.80 kg sits at the center of each of the edges. What is the moment of inertia of the ...
Saturday, June 9, 2012 at 11:31am by Lilly

Physics
a 10 foot long teeter-totter pivots in the middle. a 50 lb boy sits on one end. Where must a 100 lb boy sit to balance the beam?
Monday, October 24, 2011 at 12:57am by Clay

physics 1
A 7.2 kg diver stands at the end of a diving board 2.80 meters from its support. calculate the magnitude of the torque cause by the diver on the board the point of support.
Tuesday, February 1, 2011 at 7:02am by dominic

math
An 18 kg mass is placed st one end of a steel bar that is 1 m long. A 35 kg mass is placed at the other end. Where should the fulcrum be placed to balance the bar?
Tuesday, February 19, 2013 at 6:02pm by Stacey

physics
A diver runs and dives off the end of a spring board that is 0.9 meters above the surface of the water. As she takes off from the diving board, her velocity is 5.2 m/s directed 36 above horizontal calculate: a) the time she is in the air s b) the distance she lands from the ...
Monday, October 29, 2012 at 3:08pm by Mat

physics
A boy carries a sack on one end of a very light stick that is balanced on his shoulder, at an angle of 22.0 degrees up from the horizontal. The mass of the sack is 7.00 kg, and it sits 1.20 m from his shoulder. If his hand is 0.350 m from his shoulder, on the other end of the...
Wednesday, June 16, 2010 at 1:53pm by student

physics
A plank 2.00 cm thick and 16.3 cm wide is firmly attached to the railing of a ship by clamps so that the rest of the board extends 2.00 m horizontally over the sea below. A man of mass 87.6 kg is forced to stand on the very end. If the end of the board drops by 4.00 cm because...
Monday, April 16, 2012 at 7:12pm by Anonymous

Physics
A physics student of mass mm = 100 kg gets a summer job painting houses. On his first project, he builds a platform using large pine board with a mass of mb = 60 kg The board has an overall length of L = 8.5 meters and set on two 1 meter tall saw horses so that l = 2.25 ...
Friday, April 9, 2010 at 3:53pm by Jacob

physics
A thin 2kg box rests on a 6kg board 50cm long with 20cm hanging off the edge of a table. How far can the center of the box be from the end of the table before the board begins to tilt?
Wednesday, October 12, 2011 at 2:33pm by Dan

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