In the sport of pole vaulting, the jumper's point of mass concentration, called the centre of mass, must clear the pole. Assume that a 59 kg jumper must raise the centre of mass from 1.1 m off the ground to

72,494 results
  1. Math

    A cable 16 m long runs from the top of a utility pole to a point on the ground 4 m from the base of the pole how tall is the utility pole to the nearest tenth A. 15.5 m** B. 16.5 m C. 256 m D. 16 m

  2. AP Physics B

    A 63.6-kg bungee jumper is standing on a tall platform (h0 = 50.6 m). The bungee cord has an unstrained length of L0 = 9.54 m and, when stretched, behaves like an ideal spring with a spring constant of k = 67.8 N/m. The jumper falls from rest, and it is

  3. Algebra

    A guy-wire is attached to a pole for support. If the angle of elevation to the pole is 67 degree and the wire is attached to the ground at a point 137 feet from the base of the pole, what is the height of the pole?

  4. Trigonometry

    A vertical pole 35m high, standing on sloping ground is braced by a wire which extends from the top of the pole to a point on the ground 25 m from the foot of the pole. If the pole subtends an angle of 30 degrees at the point where the wire reaches the

  5. Physics

    In the figure below, the CG of the pole held by the pole vaulter is 1.54 m from the left hand, and the hands are 0.653 m apart. (Assume the vaulting pole has a mass of 3.72 kg.) -Calculate the force (in N) exerted by his right hand. (Enter the magnitude.)

  6. Physics

    On June 9, 1988, Sergei Bubka broke the world pole-vaulting record for the 8th time in four years by attaining a height of 6.14 m. How long did it take Bubka to return to the ground from the highest part of his vault?

  7. maths

    a rope 10m long from the top of a vertical pole to a point on the ground makes an angle of 23 degrees with the pole. how high is the pole?

  8. trig

    guy wire is attached to a pole for support. If the angle of elevation to the pole is 67° and the wire is attached to the ground at a point 137 feet from the base of the pole, what is the height of the pole (round to 2 decimal places)?

  9. Physics

    A stone dropped from certain point crosses the top and bottom ends of a vertical pole of length 20m in one second the distance of top of the pole from the initial point of release will be (g=10) Ans:11.25m

  10. Angles of elevation and depression

    The teet of two vertical poles of height 3m and 7m are in line with a point P on the ground. The smaller pole being between the taller pole and P and at distance of 20m from P the angle of elevation of the top T of the taller pole from the top R of the

  11. Math: Trig

    to determine the height of a pole across a road, Justin takes two measurments. he stands at Point A directly across from the bass of the pole and determines that the angle of elevation to the top of the pole is 15.3 degrees. he then walks 30m parallel to

  12. Geometry

    A telephone pole is supported by a steel cable which extends from the top of the pole to a point on the ground 3 meters from its base. When Leah walks 2.5 meters from the base of the pole toward the point where the cable is attached to the ground, her head

  13. Physics..Urgent!!!

    In the sport of pole vaulting, the jumper's point of mass concentration, called the centre of mass, must clear the pole. Assume that a 59 kg jumper must raise the centre of mass from 1.1 m off the ground to 4.6 m off the ground. What is the jumper's

  14. Physics

    A bungee jumper of mass 60 kg jumps from a bridge tied to an elastic rope which becomes taut after he falls 10 m. Consider the jumper when he has fallen another 10 m and is travelling at 15 m/s. Work out how much energy is stored in the rope. Take g=10

  15. Math

    The angle of elevation of the top of a vertical pole from a height 1.54m above a horizontal ground is 40 degree.the foot of the pole is on the same horizontal ground and the point of observation is 20m from the pole.calculate,correct to 3 s.f (a)the height

  16. Physics

    Two skaters, one with mass 68 kg and the other with mass 47 kg, stand on an ice rink holding a pole of length 8.8 m and negligible mass. Starting from the ends of the pole, the skaters pull themselves along the pole until they meet. How far does the 47 kg

  17. Physics - bungee jumping

    In a head dip bungee jump from abridge over a river, the bungee cord is fastened to the jumpers ankles. The jumper then steps off and falls towards the river until the cord becomes taut. At that point, the cord begins to slow the jumper's descent, until

  18. University math grade 11 Trig

    A very tall light standard is swaying in an east-west direction in a strong wind. An observer notes that the time difference between the vertical position and the furthest point of sway was 2 seconds. The pole is 40 metres tall. At the furthest point of

  19. Physics

    On June 9, 1988, Sergei Bubka broke the world pole-vaulting record for the 8th time in four years by attaining a height of 6.14 m. How long did it take him to fall?

  20. science(chem)

    For Mass-Balance eqzns, in my text it is described as "relating the equillibrium concentrations of various species in a solution to one another and to the analytical concentrations of the various solutes. Is the analytical concentration described, the

  21. Calculus

    A person is jumping straight up and down on a trampoline. The height of the center of mass of the person is measured every tenth of a second. It takes just over one second to complete one full bounce.

  22. Math

    A telephone pole anchored to the ground by a cable called guy wire at a point of 5m from the base of the pole. The wire make an angle of 72.5 with the horizontal. What is the height of the pole where the guy wire is attached to the pole?

  23. physics

    A bungee jumper falls for 1.3 seconds before the bungee cord begins to stretch. Until the jumper has bounced back up to this level, the bungee causes the jumper to have an acceleration upward of 4 m/s2. a. How fast is the jumper going when the bungee cord

  24. maths

    from a point P on a level ground and directly west of a pole,the angle of elevation from the top of the pole is 045 and from point Q east of the pole the angle of elevation of the pole the angle of elevation of the top of the pole is 068 if /PQ/ is

  25. trig

    a vertical pole 35 feet high, standing on sloping ground, is braced by a wire which extends from the top of the pole to a point on the ground 25 feet from the foot of the pole. If the pole subtends an angle of 30 degree at the point where the wire reaches

  26. trigonometry

    at a point 27 m from the front of a pole, the angle of elevation of the top of the pole is 53. find the height of the pole

  27. Physics

    A 63.0-kg bungee jumper is standing on a tall platform (h0 = 45.8 m). The bungee cord has an unstrained length of L0 = 9.18 m and, when stretched, behaves like an ideal spring with a spring constant of k = 67.2 N/m. The jumper falls from rest, and it is

  28. Maths

    The angle of depression of a point g on a horizontal ground top , T of an electric pole is 25 degrees .if the distance from g to the foot of the pole is 45 m , calculate the height of the pole to the nearest whole number.

  29. Physics

    A 60 kg high jumper lands on a foam pit and comes to rest. If the pit is able to exert an average force of 600 N on the high jumper in breaking the fall, what is the jumper’s acceleration?

  30. physics

    A bungee jumper with mass 69.5 kg jumps from a high bridge. After reaching his lowest point, he oscillates up and down, hitting a low point eight more times in 36.6 s. He finally comes to rest 24.3 m below the level of the bridge. Calculate the spring

  31. Comprehension high school

    How to draw a a point x is 34m due east of point y. The bearing of a flag pole from x and y are N 18 W and N40E respectively. Calculate the distance of the flag pole from x and y

  32. Physics

    Calculate the distance, in m, of the centre of mass of the Earth-Moon system from the centre of the Earth. Note: the mass of the Moon is 7.35x10 22kg, the mass of the Earth is 5.98x10 24kg, and their separation is 3.85x10 8m.

  33. physics

    A bungee jumper jumps from a bridge with a 3 m long bungee cord. Once the cord starts to stretch, it acts like an ideal spring with coefficient of elasticity k=100 N/m. What should be the minimum height of the bridge in m so that this jump is safe for the

  34. PHYSICS

    The object of the long jump is to launch oneself as a projectile and attain the maximum horizontal range (Fig. 3–26). Here we shall treat the long jumper as a particle even though the human body is fairly large compared to the size of the trajectory.

  35. physics(help me with the angle)

    In the 1968 Olympic Games, University of Oregon jumper Fosbury introduced a new technique of high jumping called the "Fosbury flop." It contributed to raising the world record by about 30 cm and is presently used by nearly every world-class jumper. In this

  36. physics(I'm taking a different way to solve)

    In the 1968 Olympic Games, University of Oregon jumper Fosbury introduced a new technique of high jumping called the "Fosbury flop." It contributed to raising the world record by about 30 cm and is presently used by nearly every world-class jumper. In this

  37. math

    A perfectly cylindrical container standing upright with a top and bottom (an oil drum or coke can for example) has an empty mass of M and a height of H. It is filled with a liquid of uniform density of variable mass m up to height h. When the container is

  38. Engineering Maths

    A perfectly cylindrical container standing upright with a top and bottom (an oil drum or coke can for example) has an empty mass of M and a height of H. It is filled with a liquid of uniform density of variable mass m up to height h. When the container is

  39. Physics

    An 60kg athlete wants to jump over a 2 m bar. How fast must she go the moment her foot leaves the ground in order to get her centre of mass up so high? I set KE of jumper to PE at top of bar to get 6.26m/s. Am I on the right track?

  40. physics

    Two skaters, one with mass 62 kg and the other with mass 45 kg, stand on an ice rink holding a pole of length 10 m and negligible mass. Starting from the ends of the pole, the skaters pull themselves along the pole until they meet. How far does the 45 kg

  41. Maths

    A perfectly cylindrical container standing upright with a top and bottom(an oil drum or coke can for example) of area A has an empty mass of M and a height of H. It is filled with a liquid of uniform density(p)up to the height of h. When the container is

  42. mathematics

    form two point A and B apart and on thesame horizontal line with the foot of an electric pole the Angele of deration of the top of pole are 24° and 37°respectivily final the height of the pole

  43. Physics

    Two equal-mass stars orbit their centre of mass. The distance between the stars (measured from the centre of mass of each) is 1 AU. What is the period of revolution in years? How much energy would be required to unbind these stars if they each have the

  44. Math

    The feet of two vertical poles of heights 3m and 7m are in line with a point P on the ground the smaller pole being between the taller pole and at a distance 20m from P.The angle of elevation of the top . T of the taller pole from the top R of the smaller

  45. Physics

    If the mass of oxygen is 16 times as large as the mass of hydrogen, what is the distance between the centre of the oxygen atom and the centre of mass of the water molecule? (Note: 1 pm = 1 x 10-12 m).

  46. Physics

    A bungee jumper with mass 69.7 kg jumps from a high bridge. After reaching his lowest point, he oscillates up and down, hitting a low point eight more times in 39.0 s. He finally comes to rest 25.0 m below the level of the bridge. Calculate the spring

  47. Algebra II

    A hill is inclined 15 degrees to the horizontal. A 40-foot pole stands at the top of the hill. How long a rope will it take to reach from the top of the pole to a point 68 feet downhill from the base of the pole?

  48. Physics(Please check)

    A car (mass = 1140 kg) is traveling at 27.3 m/s when it collides head-on with a sport utility vehicle (mass = 2380 kg) traveling in the opposite direction. In the collision, the two vehicles come to a halt. At what speed was the sport utility vehicle

  49. Math! Helppppp

    Two poles are place 15 feet apart. One pole is 8 ft high and the other pole is 16 ft high. The top of each pole is attached to the base of the other by cable which run in a straight line. -Find the slopes of the lines defined by the two ropes. -How high

  50. science

    The world record for pole vaulting is 6.15 m. If the vaulters mass was 83.5 kg, how much potential energy did he have at the top of the jump?

  51. physics

    A jumper of mass m=55 kg starts in a crouched position with the jumper's center of mass at a position y1=0 m. Just before the jumper leaves the floor, his or her center of mass is at y2=0.7 m. From another measurement, you have found that the velocity of

  52. Physics

    Jenn Suhr recently won the gold medal in this summer’s Olympic games in pole vault. Her record is 16 ft, 2 in. (She did less than that to win gold this summer.) If all of her gravitational potential energy came only from her kinetic energy, calculate (in

  53. physics

    A uniform rigid pole of length L and mass M is to be supported from a vertical wall in a horizontal position, as shown in the figure. The pole is not attached directly to the wall, so the coefficient of static friction, μs, between the wall and the pole

  54. physics

    A uniform rigid pole of length L and mass M is to be supported from a vertical wall in a horizontal position, as shown in the figure. The pole is not attached directly to the wall, so the coefficient of static friction, μs,between the wall and the pole

  55. physics

    A uniform rigid pole of length L and mass M is to be supported from a vertical wall in a horizontal position, as shown in the figure. The pole is not attached directly to the wall, so the coefficient of static friction, μs,between the wall and the pole

  56. Physics

    A uniform rigid pole of length L and mass M is to be supported from a vertical wall in a horizontal position, as shown in the figure. The pole is not attached directly to the wall, so the coefficient of static friction, μs,between the wall and the pole

  57. PHYSICS

    The object of the long jump is to launch oneself as a projectile and attain the maximum horizontal range (Fig. 3–26). Here we shall treat the long jumper as a particle even though the human body is fairly large compared to the size of the trajectory.

  58. PHYSICS

    The object of the long jump is to launch oneself as a projectile and attain the maximum horizontal range (Fig. 3–26). Here we shall treat the long jumper as a particle even though the human body is fairly large compared to the size of the trajectory.

  59. chemistry

    A bottle of commercial hydrochloric acid solution So is labeled 37% composition by mass, density 1.19 kg/L. Calculate the concentration of solution So. 4.2 ml of So are diluted to 500ml solution called S. We titrate S with 200 ml of KOH solution of

  60. sports

    I want to know about cricket sport. Can you tell me something about cricket sport. What do they do.. how they play it. The "sport called cricket" is better phrasing, not "cricket sport" -- http://en.wikipedia.org/wiki/Cricket =)

  61. Physics

    The Royal Gorge bridge over the Arkansas River is 310.0 m above the river. A 59.0-kg bungee jumper has an elastic cord with an unstressed length of 62.0 m attached to her feet. Assume that, like an ideal spring, the cord is massless and provides a linear

  62. math

    A point P is 500m from the base of a pole. If the angle of elevation of the top of the pole to the point P is 40 degrees, find the height of the pole

  63. physics problems

    please check my answers. 17. explain how the sport of pole vaulting dramatically changed when flexible fiberglass poles replaced still wodden poles? -the fiberglass poles had more momentum and PE than still wooden poles? 20. does the international space

  64. physics

    A high jumper, falling at 3.8 m/s, lands on a foam pit and comes to rest compressing the pit 0.38 m. If the pit is able to exert an average force of 1100 N on the high jumper in breaking the fall, what is the jumper's mass?

  65. college

    The angle of elevation from point A to the top of a vertical pole is 30.0 degrees. At point B, 6 meters closer to the base of the pole and on a line through the base of the pole and point A, the angle of elevation to the top of the pole is 37.0 degrees.

  66. math

    a flagpole is 25 feet tall. a truck runs into the pole and bends it at the very bottom of the pole but the rest of the pole remains straight. after the accident we measure the angle of elevation to the top of the pole from a point 30 feet from the base of

  67. kagzi

    while having a take off , where the centre of gravity of a jumper is situated?

  68. physics

    two planets of mass "m" and "M" respectively. Have centre to centre seperation of "R" . At what distance from the centre of the planet of mass "M" do the gravitational force of planets cancel each other??????? plz urgent help me?

  69. physics

    two small objects of masses 'm' & '2m' each are attaached to the ends of a light rigid rod of length 'L' . the rod is pivoted at a point where centre of mass of the two objects lie. the moment of inertia of the arrangement about an axis through the centre

  70. Physics

    Four point masses are placed at the corner of a square of side 2m .find the centre of mass of the system w.r.t the centre of square?

  71. Physics/Nautical Mile

    Still studying! I have The Macmillan & Silk Cut Nautical Almanac from 1981 which pre-dates WGS84 and they make reference to the NM being 6046 feet at the equator and 6108 feet at the poles. Conversions to metres = 1842.82m and 1861.71m. Remarkably similar

  72. Science physics

    What is the magnitude of average force a pole vaulters exterts on a landing bag if it's 1.5 meters high and deforms by 0.5 M=60kg Height of the bar=4.5m His centre of mass is 1m

  73. Celestial Navigation

    The Nautical Mile?. Standard description of the Nautical Mile copied from a text book. "A Nautical Mile is the distance on the Earths surface subtended by one minute of latitude at the Earths centre". Without complicating this further by referring to the

  74. Physics

    On June 9, 1988, Sergei Bubka broke the world pole-vaulting record for the 8th time in four years by attaining a height of 6.14 m. How long was Bubka in the air for this record setting vault?

  75. math (algebra)

    An auto dealer wants to string a wire from the top of a pole to the ground and hang colorful pennants from it. The distance from the base of the pole to the point where the wire is attached to the ground is 3 times the height of the pole. If the wire is 63

  76. Physics

    A 63.0-kg bungee jumper is standing on a tall platform (h0 = 45.8 m). The bungee cord has an unstrained length of L0 = 9.18 m and, when stretched, behaves like an ideal spring with a spring constant of k = 67.2 N/m. The jumper falls from rest, and it is

  77. physics

    A 61.0 -kg bungee jumper is standing on a tall platform (h0 = 46.0 m), as indicated in the figure. The bungee cord has an unstrained length of L0 = 9.00 m, and when stretched, behaves like an ideal spring with a spring constant of 76.0 N/m. The jumper

  78. physic

    Bungee Jumping. A bungee jumper jumps from a tall bridge attached to a light elastic cord (bungee cord) of unstretched length L. The cord first straightens and then extends as the jumper falls. This prevents her from hitting the water! Suppose that the

  79. english

    Choose one sentence that states the author’s point of view about the South Pole. Then choose two pieces of text evidence that support the author’s point of view. Author's Point of View The South Pole was a dangerous place to explore. The South Pole was

  80. Physics

    During a parachute jump, the person is initially in free fall and then the parachute is opened. While in free fall, there are two forces acting on the jumper-gravity and air fraction. The faster the jumper is at falling, the more air friction there is. At

  81. science

    each end of a magnet is called a magnetic pole or simply pole.

  82. sport

    what are he factors that affect participation in sport. what are the ways in which participation in sport is encouraged. what are four key issues in sport and their impact on sport. ppleae help im lost

  83. science

    A bungee jumper jumps (with no initial speed) from a tall bridge attached to a light elastic cord (bungee cord) of unstretched length L. The cord first straightens and then extends as the jumper falls. This prevents her from hitting the water! Suppose that

  84. word problem

    A 62 foot rope hangs from the top of a pole. When pulled taut to its fullest length the rope reaches a point on the ground 31 feet from the base of the pole. Find the height of the pole to the nearest tenth of a foot. Let p equal the height of the pole.

  85. mathematics

    a vertical pole stands on level ground. from a point on the ground, which is 15 meters away from the pole, the angle of elevation of its top is found to be 30 degrees.find the height of the pole?

  86. Maths

    The angle of elevation of the top of a vertical pole from a height 1.5m above a horizontal ground is 40. The foot of the pole is on the same horizontal ground and the point of observation is 20m from pole. Find the height of pole to 3.sp

  87. mathematics on sports

    can anyone provide me with some sources which has information on how mathematics has been used on sports? e.g., trig can help to calculate the best angle to throw a ball or something, the speed of running can affect the height of high jump etc. etc.? any

  88. physics

    a high jumper approaches the takeoff point at a speed of 7.20 m/s. Assuming that only this speed determines the height to which he can rise, find the maximum height at which the jumper can clear the bar.

  89. Physics Classical Mechanics

    A bungee jumper jumps (with no initial speed) from a tall bridge attached to a light elastic cord (bungee cord) of unstretched length L. The cord first straightens and then extends as the jumper falls. This prevents her from hitting the water! Suppose that

  90. physics

    A 61.0 -kg bungee jumper is standing on a tall platform (h0 = 46.0 m), as indicated in the figure. The bungee cord has an unstrained length of L0 = 9.00 m, and when stretched, behaves like an ideal spring with a spring constant of 76.0 N/m. The jumper

  91. physics

    A pole of infinite length is planted vertically on the ground. A stone is placed at a distance of 'd1' meters from the pole towards the right. A bird is sitting on the ground exactly in the middle of the pole and stone. The bird flies away towards the

  92. Math/Physics

    A bungee jumper bounces up and down at thhe end of a bungee cord with a fairly consstant amplitude of 10m and a period of 5 s. At her lowest point, the jumper is 5m above the ground. Is this Periodic or non periodic? What is the reason? Draw the graph.

  93. Life orientation

    The media tend to focus on the male dominated sport and sport personalities as well as certain sport codes and neglect other.DO YOU AGREE WITH THIS STATEMENT?

  94. Physics

    HBO is concerned about injuries on the set of their award winning fantasy series Game of Thrones. Star characters are given real swords which have a point of balance (centre of mass) 5.0cm above the top of the handle. For safety reasons, you are given only

  95. Algebra II

    A hill is inclined 15 degrees to the horizontal. A 40-foot pole stands at the top of the hill. How long a rope will it take to reach from the top of the pole to a point 68 feet downhill from the base of the pole?

  96. math

    the angle of elevation of d top of a vertical pole frm a height of 1.54m above a horizontal ground nd d point of observation is 20m frm d pole. calculate d height of d pole to 3.s.f

  97. math

    a 5ft pole is situated on top of a building. a 25ft pole extends from the top of the pole to a point on the ground creating a 26 degree angle. find the height of the building. please help me work this problem

  98. Thinking Mathematically

    solve A Flag Pole Has A Height Of 16 Yards. It Will Be Supported By Three Cables, Each Of Which Is Attached To The Flagpole At A Point 4 Yards Below The Top Of The Pole And Attached To The Ground At A Pole. Find the total number of feet of cable that will

  99. Simple Math

    Please explain to me what I need to do . A cable 35 feet long runs from the top of a utility pole to a point on the ground 30 feet from the base of the pole. How tall is the utility pole ?

  100. Physics

    In order to handle a hot pizza of mass 1.0 kg, a cook slides a light (i.e., of negligible mass) but stiff spatula of length 2.0 m from the right hand to the center of the pizza, which he then carries horizontally with both hands. His right hand is at one

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