1. 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
  2. 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
  3. 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
  4. Technology

    A boy who weighs 30 kilograms sits on one end of a seesaw. On the other end there is a girl who weighs 20 kilograms. The girl is 1.5 metres from the fulcrum. How far from the fulcrum must be the boy sit in order to balance the seesaw? How far away must the
  5. 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
  6. Math

    Two children sit on a seesaw that is 14 ft long. One child weighs 95 lb, and the other child weighs 69 lb. If x is the distance of the 69-pound child from the fulcrum when the seesaw balances, state the value of each of the other variables in the
  7. 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
  8. Physics

    A seesaw has a mass of 30 kg, a length of 3.0 m, and fulcrum beneath its midpoint. It is balanced when a 50-kg person sits on one end and a 69-kg person sits on the other end.Locate the center of mass of the seesaw (a distance from the 50-kg person).
  9. physics

    A seesaw has a mass of 30 kg, a length of 3.0 m, and fulcrum beneath its midpoint. It is balanced when a 50-kg person sits on one end and a 65-kg person sits on the other end.Locate the center of mass of the seesaw (a distance from the 50-kg person)
  10. 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?
  11. physics

    A playground seesaw is exactly 3.00 m long. A little girl who weighs 425 N is sitting on one end. If a little boy weighing 575 N wants to sit on the other side, how far must he sit from the fulcrum to keep the seesaw perfectly balanced?
  12. 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?
  13. 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
  14. 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
  15. 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
  16. physics

    Two people (from the 1950s!) sit on opposite sides of a uniform board of length L. One person, of mass m1 = 50.0 kg, sits at a point 1.90 m to the left of the fulcrum. The fulcrum is located at the center of the board. The other person, of mass 45.0 kg,
  17. physics

    An adult and a child are on a seesaw 14.5 ft long. The adult weighs 152 lb and the child weighs 80 lb. How many feet from the child must the fulcrum be placed so that the seesaw balances?
  18. Physics

    A father and son sitting on opposite sides of a seesaw balance each other. What is the father's weight if he is seated at 0.5m away from fulcrum and son is seated at 1.5m away from the fulcrum and weighs 200N?
  19. Physics

    A 5 m, 10 kg seesaw is balanced by a little girl(25 kg) and her father(80 kg) at the extreme opposite ends. How far from the seesaw's center of mass must the fulcrum be placed
  20. Physics

    Three children are trying to balance on a seesaw. The seesaw is 3.9 m long and pivots about a rock at its center. Louie and Laura are already sitting on opposite ends. If Martha weighs 27 kg, where should she sit so as to balance the seesaw? 50kg
  21. science

    The boy A weighs 50 kg and the girl B weighs 35 kg in a seesaw...the board of the seesaw is 3.6 meter... To balance the seesaw where should girl C who weighs 25 kg seat or what particular distance should girl C seat to balance it
  22. Physics

    A boy with a mass of 40kg is seated a distance of 3.0m from the fulcrum of a seesaw. a. Calculate the load force exerted by the boy (Hint: What force is pulling him down?) b. Calculate the torque exerted by the boy. c. If his sister with a mass of 24 kg
  23. science

    A uniform plank of a seesaw is 5 meter long and supported at its centre.a boy weighing 40kgf sits at a distance 1.5meter from one end of the seesaw.where must a girl weighing 25kgf sit on the other end of the seesaw so as to balance the boy.
  24. Physics

    A 10-ft,25lb seesaw is balanced by a little girl with a weight of 50lbs and her father with a weight of 200lbs at opposite ends. How far from the seesaw's center of mass must the fulcrum be placed?
  25. PHYSics

    a child with a mass of 29 kg sits at a distance of 4m from the pivot point of a seesaw. where should a 15 kg child sit to balance the seesaw?
  26. physics

    A child with a mass of 17 kg sits at a distance of 1 m from the pivot point of a seesaw. Where should a 15 kg child sit to balance the seesaw?
  27. 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.
  28. physics

    Two boys and their father are balance on a seesaw. The father, 70kg, sits on one end 0.65m from the center of the seesaw while the two boys sit together on the other end. If each boy weighs 30kg, where should they sit?
  29. physics

    Two boys and their father are balance on a seesaw. The father, 70kg, sits on one end 0.65m from the center of the seesaw while the two boys sit together on the other end. If each boy weighs 30kg, where should they sit?
  30. physics

    Two boys and their father are balance on a seesaw. The father, 70kg, sits on one end 0.65m from the center of the seesaw while the two boys sit together on the other end. If each boy weighs 30kg, where should they sit?
  31. 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
  32. 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
  33. physics

    A uniform plank of seesaw is 5meter long.a boy weighing40kgf sits 1.5meter from the one end.what will be the distance of a girl weighing 25kgf sit at other end,so as to balance the seesaw.
  34. 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
  35. Physics

    Susie weighs 100lbs. Sam weighs 150. The seesaw is 20ft long. The seat on one side only is movable in one foot increments. At what distance from the axis should the seat be placed in order for them to balance? Where should each person sit?
  36. math

    A fulcrum of a lever (which is placed horizontally) is placed 8 meters from a force of 28 Newton and another force of 14 Newton is placed on the opposite side from the fulcrum. Determine the distance between the forces of 14 Newton from the fulcrum in
  37. math

    A fulcrum of a lever (which is placed horizontally) is placed 8 meters from a force of 28 Newton and another force of 14 Newton is placed on the opposite side from the fulcrum. Determine the distance between the forces of 14 Newton from the fulcrum in
  38. science

    a boy is able to persuade his father to play with him in a seesaw. if the boy wanted to get on the seesaw and to balance his weight against his fathers at what point from fulcrum should he sit?
  39. 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
  40. physics

    A boy of mass 23 kg sits on a seesaw 1.5 m from the axis of rotation. At what distance from the axis of rotation must his friend, whose mass is 21 kg, be positioned to balance the seesaw? [6 marks]
  41. physics

    two children sit at opposite ends of a 60 lb. 10 ft. seesaw which is pivoted at its center one child weighs 50 lbs. and the other 75 lbs. the seesaw is uniform so that its center of gravity is at its geometric center, which also is its pivot point. A) the
  42. 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
  43. Physics

    A weight of 31 N is located a distance of 10.8 cm from the fulcrum of a simple balance beam. At what distance from the fulcrum should a weight of 17 N be placed on the opposite side in order to balance the system?
  44. physics

    Mary and John are on opposite sides of a seesaw. Mary has 3x the mass of John. If Mary is sitting at a distance of .5m from the fulcrum, how far must John site in order to keep it balanced.
  45. 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
  46. Physics

    A 75 kg man sits at one end of a uniform seesaw pivoted at its center, and his 24 kg son at the other end. Where would his 55kg wife have to sit to balance the seesaw?
  47. 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
  48. Physics

    39. (Taken from problem 5 at the end of Chapter 9) Look at the children balanced on the see-saw in the figure below. r1 = 1.60 m. The center mass of the seesaw is located 0.16 m to the left of the pivot point. The seesaw board has a mass of 12.0 kg which
  49. Physics

    Three children are trying to balance on a seesaw, which consists of a fulcrum rock, acting as a pivot at the center, and a very light board 6.0 long . Two playmates are already on either end. Boy A has a mass of 50 , and girl B a mass of 35 . Where should
  50. 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 ?
  51. 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? thank you!!
  52. 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)
  53. 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
  54. physics

    Two 100 kg ball are mounted on a seesaw and seesaw is in balanced position and balls can move freely on the surface.How much force I should applied on the right arm of seesaw so that the left side ball could jump up to 5 centimeter in the Air.
  55. 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
  56. 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
  57. Science

    A boy and girl sit on a seesaw of length 4m, balanced at its center. The girl sits at the far end and has a mass of 50kg. The boy is twice as heavy as the girl, and therefore sits midway between his end and the center. Then the girl is given a bag of
  58. Math

    Suppose a child is sitting 5 feet from the fulcrum. Where does a 175 pound adult need to sit for the seesaw to be balance?
  59. physical science

    An input force of 20 newtons is applied to a lever at a distance of 2 meters from the fulcrum. An object 0.5 m away from the fulcrum (and on the other side) is lifted by the 20-N force. What is the output force? A. 10 N B. 20 N C. 40 N D. 80 N
  60. 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
  61. physics

    A 30.0-kg child sits on one end of a long uniform beam having a mass of 20.0 kg, and a 43.0-kg child sits on the other end. The beam balances when a fulcrum is placed below the beam a distance of 1.10 m from the 30.0-kg child. How long is the beam?
  62. Math

    For a seesaw that 14 ft long, where should the fulcrum be placed to balance a 204 lbs adult and a 81.6 lbs child?
  63. 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.
  64. Physics

    The seesaw in the figure below is 4.5 m long. Its mass of 20 kg is uniformly distributed. The child on the left end has a mass of 14 kg and is a distance of 1.4 m from the pivot point while a second child of mass 39 kg stands a distance L from the pivot
  65. Physics

    Suppose the mass of the stick is 200 g, and a single 500-g mass is to play "solitary seesaw" at the 0-cm mark. Where should the fulcrum be located?
  66. Math

    A 40lb child sits at one end of a teeter-totter-totter which is 12 feet long and has the fulcrum in the center. How many feet from the fulcrum should a 60 lb child sit so the teeter-totter will balance?
  67. physics

    two small kids weighing 10kg and 15kg are trying to balance on a seesaw of total length 5 m with the fulcrum at the centre. if one of the kids is sitting at an end where should the other sit?
  68. Physics

    You and your little cousin sit on a see-saw. You sit 0.39 m from the fulcrum, and your cousin sits 1.53 m from the fulcrum. You weigh 620 N. How much does she weigh?
  69. Physics

    A child sits down on one end of a horizontal seesaw of negligible weight, 2.14 m from the pivot point. No one balances on the other side. Find the instantaneous angular acceleration of the see-saw and the tangential linear acceleration of the child.
  70. physics

    A child sits down on one end of a horizontal seesaw of negligible weight, 1.96 m from the pivot point. No one balances on the other side. Find the instantaneous angular acceleration of the see-saw and the tangential linear acceleration of the child.
  71. Math

    A semi circle sits on top of a rectangle to form the figure below find its area and perimeter use 3.4 for pie on the side 4 inches and on the bottom 6 inches what is the answer
  72. Algebra 1

    The weight needed to balance a lever varies inversely with the distance from the fulcrum to the weight. A 120-lb weight is placed on a lever, 5 ft from the fulcrum. What amount of weight, in pounds, should be placed 8 ft from the fulcrum to balance the
  73. 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,
  74. 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
  75. 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
  76. 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
  77. Math 8

    A stop sign has each side measures of 12.4 inches, and the distance from any side to the opposite side is 30 inches. Divide the stop sign into one rectangle and two trappezoids. What are the dimensions of the rectangle and each of the trapezoid Ok I
  78. 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
  79. 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
  80. 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
  81. Physics

    A 450.8 N child and a 101.0 N child sit on either end of a 2.2 m long seesaw. How far from the 450.8 N child should the pivot be placed to ensure rotational equilibrium? Disregard the mass of the seesaw. Answer in units of m part 2 of 2 Suppose a 367 N
  82. Physics

    A 450.8 N child and a 101.0 N child sit on either end of a 2.2 m long seesaw. How far from the 450.8 N child should the pivot be placed to ensure rotational equilibrium? Disregard the mass of the seesaw. Answer in units of m part 2 of 2 Suppose a 367 N
  83. 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
  84. physics

    a man lifts various loads with the same lever. The distance of the applied force from the fulcrum is 2.50 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
  85. 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)
  86. statics

    You have a seesaw with 2 people on each end. the seesaw is on a pivot. label the forces in a free body diagram acting on the seesaw. Its online and I tried a force down on each end but then the pivot it keeps saying is wrong. I tried a force up from the
  87. math

    A water heater has a diameter of 18 inches. It sits in a drain pan that has a diameter of 22 inches and a height of 2 inches, as modeled in the diagram below. Water that leaks out of the water heater sits in the drain pan. Which of the following is closest
  88. 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
  89. physics

    a man weighs 162 pounds, and is 69 inches tall. his forearm is parallel to the ground. he holds an 8 pound weight in his hand. the biceps has an angle of insertion of 85 degrees with a distance of 1.4 inches at insertion. the system is equilibrium. what
  90. Physics

    A seesaw is 4 meters long and is pivoted in the middle. There is a 350 N child on the left end. Where will a 540 N person have to sit to balance the seesaw?
  91. physics

    Some kids playing at the park get creative, and they turn a seesaw into a trebuchet – they slide the plank until only 20 cm of its total length of 4 m extends from one side of the fulcrum. While bracing the system in a horizontal position, they place a
  92. physics

    suppose if we put 5 kilogram weight on the each arm of a seesaw and it is in equilibrium position now if I apply 2 newton force on the corner of right arm of this seesaw side by side in horizontal direction then this force will be distributed equally or
  93. Physics

    A length l, mass M of the rod can freely rotate about the fulcrum O in the vertical plane. A mass of m, velocity v of bullets at a distance within a fulcrum for the incident at the bar, when the maximum deflection angle of the rod 30 ¡ã,find the initial
  94. science

    A 10 meter long seesaw has a boy of mass 20 kg sitting on one end . How far away from him should a girl of mass 30kg sit to balance the seesaw?
  95. Math

    On a map 3/6 inch represents 60 kilometers. Distance A to B is 4 5/8 inches. Distance C to D is 5 3/5 inches. Distance E to F is 9 5/6 inches. What is the number of kilometers between A and B? What is the number of kilometers between C and D? What is the
  96. 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
  97. Science

    A 100 N force acting on a lever 2 m from the fulcrum balances on object0.5 m from the fulcrum on the other arm what is the weight of the object. (In newtons)? What is the mass (in kg)?
  98. 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
  99. math

    A map distance of 5 inches represents 200 miles of actual distance Suppose the distance between two cities on the maps 7 inches.What is the actual distance between the two cities?Write the rule you used to find the actual distance.
  100. 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