a child sitting 1.10 m from the center of a merry go round moves with a speed of 1.25 m/s. calculate the centripetal acceleration of the child and the net horizontal force exerted on the child (mass = 25 kg)

25,276 results
  1. PHYSICS

    a child sitting 1.10 m from the center of a merry go round moves with a speed of 1.25 m/s. calculate the centripetal acceleration of the child and the net horizontal force exerted on the child (mass = 25 kg).

  2. Physics

    2) A child sits on a merry-go-round, 1.5 meters from the center. The merry-go-round is turning at a constant rate, and the child is observed to have a radial acceleration of 2.3m/s^2. How long does it take for the merry-go-round to make one revolution?

  3. Physics

    A child sits on a rotating merry-go-round, 2.19 m from its center. If the speed of the child is 2.32 m/s, what is the minimum coefficient of static friction between the child and the merry-go-round that will prevent the child from slipping?

  4. physics

    A merry-go-round revolves at a rate of 8.3 rev/min. A child who is seated at the outer edge of the merry-go-round travels at 6.9m/s. What is the diameter of the merry-go-round?

  5. Physics

    8. When a person stands on a rotating merry go round, the frictional force exerted on the person by the merry go round is (A) greater in magnitude than the frictional force exerted on the person by the merry go round (B) opposite in direction to the

  6. Physics

    1.) jet plane traveling 1800 km/h (500 m/s) pulls out of a dive by moving in an arc of radius 6.00 km. What is the plane's acceleration in g's? 6.) A child on a merry -go-round is moving with a speed of 1.35 m/s when 1.20 m from the center of the

  7. physics

    Two children with masses of 18 kg and 36 kg are sitting on a balanced seesaw. If the heavier child is sitting 0.45 m from the center, at what distance from the center is the lighter child sitting? Answer in units of m. Please help !!!

  8. physics

    1.A merry-go-round makes one complete revo- lution in 12.2 s. A 49.4 kg child sits on the horizontal floor of the merry-go-round 2.3 m from the center. Find the child’s acceleration. The accelera- tion of gravity is 9.8 m/s2 . Answer in units of m/s2

  9. Physics

    If the distance from the center of a merry-go-round to the edge is 1.2m, what centripetal acceleration does a passenger experience when the merry go round rotates with a frequency of 0.08 hz?

  10. Physics

    A girl sitting on a merry-go-round moves counterclockwise through an arc length of 3.36m. If the girl’s angular displacement is 2.96 rad, how far is she from the center of the merry-go-round? Answer in units of m.

  11. Physics

    A 21-kg child starts at the center of a playground merry-go-round that has a radius of 3.5 m and rotational inertia of 500 kg⋅m2 and walks out to the edge. The merry-go-round has a rotational speed of 0.20 s−1 when she is at the center. What is its

  12. physics

    A child sitting 1.50m from the center of a merry-go-around moves with a speed of 1.10m/s . Part a) Calculate the centripetal acceleration of the child. Part b) Calculate the net horizontal force exerted on the child ( = 20.5 ).

  13. physics

    A playground merry-go-round of radius 2.00 m has a moment of inertia I = 255 kg·m2 and is rotating about a frictionless vertical axle. As a child of mass 25.0 kg stands at a distance of 1.00 m from the axle, the system (merry-go-round and child) rotates

  14. Angular Acceleration

    A child pushes a merry go-round from rest to a final angular speed of 0.4 rev/s with constant angular acceleration. In doing so, the child pushes the merry-go-round 1.1 revolutions. What is the angular acceleration of the merry go-round? I got .0727 but

  15. physics

    A playground merry-go-round has a radius 2.6 m and a rotational inertia 83 kg.m^2. When the merry-go-round is at rest, a child with mass 27 runs with speed 4.3 along a line tangent to the rim and jumps on. The angular velocity of the merry-go-round is

  16. physics

    A playground merry-go-round has a disk-shaped platform that rotates with negligible friction about a vertical axis. The disk has a mass of 210 kg and a radius of 1.8 m. A 35- kg child rides at the center of the merry-go-round while a playmate sets it

  17. Physics

    A merry-go-round is at rest before a child pushes it so that it rotates with a constant angular acceleration for 38.0 s. When the child stops pushing, the merry-go-round is rotating at 1.20 rad/s. How many revolutions did the child make around the

  18. physics

    Two children with masses of 24 and 31 kg are sitting on a balanced seesaw. If the lighter child is sitting 3 m from the center, where is the heavier child sitting?

  19. Physics

    A brave child decides to grab onto an already spinning merry‑go‑round. The child is initially at rest and has a mass of 24.5 kg. The child grabs and clings to a bar that is 1.60 m from the center of the merry‑go‑round, causing the angular velocity

  20. physics

    a child sits on the edge of a spinning merry-go-round 3.2 m from its center. The coefficient of static friction between the child's bottom and the surface of the merry-go-round is .8. Find the maximum rate in revolutions per seconds, that the

  21. Physics

    A playground merry-go-round of radius 𝑅 = 2.0 m has a moment of inertia 𝐼 = 250 kg ⋅ m2 is rotating at 15 rpm about a frictionless, vertical axle. Facing the axle, a 25-kg child hops onto the merry-goround and manages to sit down on the edge. a.

  22. physics

    At a playground, a 20-kg child sits on a spinning merry-go-round, as shown from above in (Figure 1) . The merry-go-round completes one revolution every 6.2 s, and the child sits at a radius of r=1.8m. a. What is the force of static friction acting on the

  23. physics help

    At a playground, a 20-kg child sits on a spinning merry-go-round, as shown from above in (Figure 1) . The merry-go-round completes one revolution every 6.2 s, and the child sits at a radius of r=1.8m. a) What is the force of static friction acting on the

  24. Physics Inertia : Merry-go-round

    A playground merry-go-round of radius 1.96 m has a moment of inertia 335 kg m2 and is rotating at 12.3 rev/min. A child with mass 43.1 kg jumps on the edge of the merry-go-round. What is the new moment of inertia of the merry-go-round and child, together?

  25. Physics

    A merry-go-round with a a radius of R = 1.95 m and moment of inertia I = 192 kg-m2 is spinning with an initial angular speed of ω = 1.41 rad/s in the counter clockwise direection when viewed from above. A person with mass m = 63 kg and velocity v = 4.7

  26. physics

    A merry go round makes 2 revolutions every 2 s. A child is sitting 1.80 m from the center. Calculate a)The period of the merry go round b)the speed of the child in his position c) the centripetal acceleration of the child d) the net horizontal force on the

  27. 11th grade

    A child sitting 1.08 m from the center of a merry-go-round moves with a speed of 1.20 m/s. (a) Calculate the centripetal acceleration of the child.

  28. 11th grade

    A child sitting 1.08 m from the center of a merry-go-round moves with a speed of 1.20 m/s. (a) Calculate the centripetal acceleration of the child.

  29. Physics

    A child sitting 1.39 m from the center of a merry-go-round moves with a speed of 1.21 m/s. Calculate the centripetal acceleration of the child. (in m/s^2) Calculate the net horizontal force exerted on the child (mass = 22.5 kg). (in N)

  30. Physics

    A child sitting 1.80 m from the center of a merry-go-round moves with a speed of 1.45 m/s . Calculate the centripetal acceleration of the child.Calculate the net horizontal force exerted on the child. (mass = 28.5 kg )

  31. physics

    is the acceleration of a child sitting near the center of a merry go round larger than the acceleration of a child sitting near the edge of the same merry go round?

  32. physics

    is the acceleration of a child sitting near the center of a merry go round larger than the acceleration of a child sitting near the edge of the same merry go round?

  33. physics

    A 44.8- child is standing on the outer edge of a merry-go-round that has moment of inertia 981 and radius 2.40 . The entire system is initially rotating at 0.180 . Find the angular velocity if the child moves to a final position 1.10 from the center of the

  34. Physics

    A 24.5-kg child is standing on the outer edge of a merry-go-round which has moment of inertia 989 kg • m2 and radius 2.40 m. The entire system is initially rotating at 0.180 rev/s. Find the angular velocity if the child moves to a final position 1.10 m

  35. Physics

    A child of mass m is playing on a merry-go-round which has mass 6m and radius r. Assume the merry-go-round is a uniform disk. The child is standing on the edge of the merry-go-round, which is spinning with an angular speed ω1. a) What is the moment of

  36. Physics

    A girl sitting on a merry-go-round moves counterclockwise through an arc length of 3.75 m. If the girl’s angular displacement is 2.12 rad, how far is she from the center of the merry-go-round? Answer in units of m

  37. Physics

    A girl sitting on a merry-go-round moves counterclockwise through an arc length of 3.75 m. If the girl’s angular displacement is 2.12 rad, how far is she from the center of the merry-go-round? Answer in units of m

  38. Physics

    A 24.5-kg child is standing on the outer edge of a merry-go-round which has moment of inertia 989 kg • m2 and radius 2.40 m. The entire system is initially rotating at 0.180 rev/s. Find the angular velocity if the child moves to a final position 1.10 m

  39. physics

    A child with a mass of 46 kg is riding on a merry-go-round. If the child has a speed of 3 m/s and is located 2.2 m from the center of the merry-go-round, what is the child's angular momentum? ____kg·m2/s

  40. physics

    A child with a mass of 46 kg is riding on a merry-go-round. If the child has a speed of 3 m/s and is located 2.2 m from the center of the merry-go-round, what is the child's angular momentum? ____kg2/s

  41. Physics

    A merry-go-round is rotating at 4.775 revs/min with a 45 kg child on the outer edge. The radius is 2.0 m. The child moves to the centre of the merry go round. What is the final angular velocity of the merry go round. The moment of inertia of the

  42. physics

    A merry go round in the park has a radius of 1.8 m and a rotational inertia of 900 kg-m^2. A child pushes the merry go round with a constant force of 80 N applied at the edge and parrallel to the edge. A frictional torque of 12 Nm acts at the axle of the

  43. Physics

    A merry-go-round in the park has a radius of 1.8 m and a rotational inertia of 900 kgm^2. A child pushes the merry-go-round with a constant force of 80 N applied at the edge and parallel to the edge. A frictional torque of 12 Nm acts at the axle of the

  44. Physics

    In a playground, there is a small merry-go-round of radius 1.20 m and mass 190 kg. Its radius of gyration (see Problem 85 of Chapter 10) is 91.0 cm. A child of mass 44.0 kg runs at a speed of 4.50 m/s along a path that is tangent to the rim of the

  45. Physics

    In a playground, there is a small merry-go-round of radius 1.20 m and mass 190 kg. Its radius of gyration (see Problem 85 of Chapter 10) is 91.0 cm. A child of mass 44.0 kg runs at a speed of 4.50 m/s along a path that is tangent to the rim of the

  46. Physics

    Three children are riding on the edge of a merry–go–round that is 84 kg, has a 1.40–m radius, and is spinning at 20.0 rpm. The children have masses of 21.0, 24.0, and 29.0 kg. If the child who has a mass of 24.0 kg moves to the center of the

  47. Physics

    Three children are riding on the edge of a merry–go–round that is 84 kg, has a 1.40–m radius, and is spinning at 20.0 rpm. The children have masses of 21.0, 24.0, and 29.0 kg. If the child who has a mass of 24.0 kg moves to the center of the

  48. physics

    A 22 kg child is riding a playground merry-go-round that makes 40 revolutions in 60 seconds. Determine the magnitude of force (in Newtons) necessary to make the child stay on the merry-go-round if she is 1.25m from its center.

  49. physics

    A 22 kg child is riding a playground merry-go-round that makes 40 revolutions in 60 seconds. Determine the magnitude of force (in Newtons) necessary to make the child stay on the merry-go-round if she is 1.25m from its center.

  50. Physics

    A child on a merry-go-round is moving with a speed of 1.40 m/s when 1.18 m from the center of the merry-go-round. (a) Calculate the centripetal acceleration of the child. (b) Calculate the net horizontal force exerted on the child (mass = 25.0 kg).

  51. Physics-circular force

    A child on a merry-go-round is moving with a speed of 1.40 m/s when 1.18 m from the center of the merry-go-round. (a) Calculate the centripetal acceleration of the child. (and I got 1.08) (b) Calculate the net horizontal force exerted on the child (mass =

  52. physics

    A child moves with a speed of 5.40 m/s when positioned 14.0 m from the center of a merry-go-round. Calculate the net force (in newtons) exerted on the child, whose mass is 26.0 kg.

  53. College Physics

    A 40 kg child is standing on the edge of a merry-go-round in a playground. Before they were deemed too dangerous, these were quite common. They were just huge rotating platforms you could sit on while someone spun you around in uniform circular motion

  54. physics

    A child of mass 52 kg jumps onto the edge of a merry-go-round of mass 170 kg and radius 1.9 m that is initially at rest as sketched in the figure below. While in the air (during her jump), the child's linear velocity in the direction tangent to the edge of

  55. Physics

    A merry-go-round makes one complete revolution in 9.1 s. An 18.8 kg child sits on the horizontal floor of the merry-go-round 4.7 m from the center. Find the child’s acceleration. The acceleration of gravity is 9.8 m/s 2

  56. Physics

    In a playground, there is a small merry-go-round of radius 1.20 m and mass 190 kg. Its radius of gyration (see Problem 85 of Chapter 10) is 91.0 cm. A child of mass 44.0 kg runs at a speed of 4.50 m/s along a path that is tangent to the rim of the

  57. mit physsics

    A merry-go-round (pictured) is sitting in a playground. It is free to rotate, but is currently stationary. You can model it as a uniform disk of mass 200 kg and radius 110 cm (consider the metal poles to have a negligible mass compared to the

  58. physics

    A merry-go-round (pictured) is sitting in a playground. It is free to rotate, but is currently stationary. You can model it as a uniform disk of mass 200 kg and radius 110 cm (consider the metal poles to have a negligible mass compared to the

  59. Classical Mechanics Physics

    A merry-go-round (pictured) is sitting in a playground. It is free to rotate, but is currently stationary. You can model it as a uniform disk of mass 210 kg and radius 110 cm (consider the metal poles to have a negligible mass compared to the

  60. physics (Urgent)!!!!!!!!!!!!!!!!!!!!!!

    A merry-go-round (pictured) is sitting in a playground. It is free to rotate, but is currently stationary. You can model it as a uniform disk of mass 210 kg and radius 110 cm (consider the metal poles to have a negligible mass compared to the

  61. PHYSICS

    A merry-go-round (pictured) is sitting in a playground. It is free to rotate, but is currently stationary. You can model it as a uniform disk of mass 190 kg and radius 100 cm (consider the metal poles to have a negligible mass compared to the

  62. physics

    A merry-go-round in the park has a radius of 1.8 m and a rotational inertia of 900kgm^2. A child pushes the merry-go-round with a constant force of 80 N applied at the edges and parallel to the edge. A frictional torque of 12 Nm acts at the axle of the

  63. Physics

    A child (48 kg) stands on the edge of a stationary merry-go-round (uniform disk of radius 1.2 m and mass 50 kg). The child jumps off at 1.0 m/s with respect to the ground in the direction tangential to the edge. Find the angular speed of the merry-go-round

  64. physics

    A girl sitting on a merry-go-round 1.50 m from the center moves counterclockwise. If the girl's angular displacement is 1.67 rad, what is the arc length through which she moved?

  65. physics

    A 39.0kg child runs with a speed of 2.70m/s tangential to the rim of a stationary merry-go-round . The merry-go-round has a moment of inertia of 506 kg m^2 and a radius of 2.51m . When the child jumps onto the merry-go-round, the entire system begins to

  66. physics

    In a playground there is a small merry-go-round of radius 1.40 m and mass 140 kg. The radius of gyration is 0.960 m. A child of mass 43.0 kg runs at a speed of 3.70 m/s tangent to the rim of the merry-go-round while it is at rest, and then jumps on. Find

  67. Physics

    A playground merry-go-round of radius R = 1.92m has a moment of inertia of I = 221kgm^2 and is rotating at 14.0rev/min about a frictionless vertical axle. Facing the axle, a 29.8kg child hops onto the merry-go-round and manages to sit down on its edge.

  68. physics

    A 3.6-kg cat is sitting on the edge a merry-go-round that is spinning at 2.7 rad/s. The diameter of the merry-go-round is 5.6 m. How large is the static friction between the cat’s paws and the surface of the merry-go-round if it does not slip off?

  69. Physics

    A few kids decide to go to the park to go on the merry-go-round. They are the only ones there so the merry-go-round is not moving yet. They push it for 6.00 s and it moves over an angle of 129°. What is the final angular velocity of the merry-go-round?

  70. Physics

    Which of the following events does not involve a change in angular momentum? 1. A spinning ice skater drawing in her arms to increase her rotational speed. 2. A child walking along the perimeter of a merry-go-round as it rotates. 3. A child walking towards

  71. Physics

    A merry-go-round with r = 4m and a perfect frictionless bearing is pushed with a force of 24 N by a young girl. She pushes with a constant force that is oriented tangentially to the edge of the merry-go-round. After she pushes the merry-go-round through 14

  72. physics

    Two children (m = 34.0 kg each) stand opposite each other on the edge of a merry-go-round. The merry-go-round, which has a mass of 1.60 ✕ 10^2 kg and a radius of 1.6 m, is spinning at a constant rate of 0.34 rev/s. Treat the two children and the

  73. physics

    A child of mass 54.7 kg sits on the edge of a merry-go-round with radius 2.3 m and moment of inertia 222.81 kgm2. The merrygo-round rotates with an angular velocity of 1.6 rad/s. What radial force does the child have to exert to stay on the merry-go-round?

  74. Physics

    A 900-kg merry-go-round (a flat, solid cylinder) supports 10 children, each with a mass of 50.0 kg, located at the axis of rotation (thus you may assume the children have no angular momentum at that location). You need to describe a plan to move the

  75. physics

    A playground merry-go-round has a disk-shaped platform that rotates with negligible friction about a vertical axis. The disk has a mass of 240 kg and a radius of 1.4 m. A 33- kg child rides at the center of the merry-go-round while a playmate sets it

  76. Physics

    A playground merry-go-round has a disk-shaped platform that rotates with negligible friction about a vertical axis. The disk has a mass of 240 kg and a radius of 1.4 m. A 33- kg child rides at the center of the merry-go-round while a playmate sets it

  77. physics

    A merry-go-round starts from rest and accelerates uniformly over 26.0 s to a final angular velocity of 5.50 rev/min. (a) Find the maximum linear speed of a person sitting on the merry-go-round 4.25 m from the center. (b) Find the person's maximum radial

  78. physics

    A merry-go-round starts from rest and accelerates uniformly over 29.0 s to a final angular velocity of 5.35 rev/min. (a) Find the maximum linear speed of a person sitting on the merry-go-round 4.50 m from the center. (b) Find the person's maximum radial

  79. Physics

    A 15 kg child stands on the edge of a small merry-go-round of radius 2.0 m. If the merry-go- round turns at a steady rate of 11 rpm, calculate the magnitude and direction of the net force on the child.

  80. Physics

    A child having a mass of 45 kg sits 0.5 m from the center of a merry-go-round that is rotating with a period of 23 s. What is the centripetal force acting on the child?

  81. physics, science!!!

    A child having a mass of 37 kg sits 0.2 m from the center of a merry-go-round that is rotating with a period of 36 s. What is the centripetal force acting on the child?

  82. physics

    A playground merry-go-round of radius R = 1.1 m has a moment of inertia of I = 280 kg*m^2. and is rotating at a rate of ω = 9 rev/min around a frictionless vertical axis. Facing the axle, a 37 kg child hops onto the merry-go-round and manages to sit down

  83. physics

    A merry-go-round at a playground is a circular platform that is mounted parallel to the ground and can rotate about an axis that is perpendicular to the platform at its center. The angular speed of the merry-go-round is constant, and a child at a distance

  84. physics

    A merry-go-round in a playground has a mass of 200 kg and radius of 1.50 m. You apply a force F = 23 N tangentially to the edge of the merry-go-round for a time of 6.5 s. The moment of inertia of the merry-go-round is 1/2(mR2). What is the angular

  85. Physics

    A merry-go-round accelerates from est at .870 rad/sec^2. When the merry-go-round has made 4 complete revolutions, how much time has elapsed since the merry-go round started? What is the angular velocity of the merry-go round? Could someone help, please

  86. science

    Which way is the momentum occuring if a child is riding a merry go round at a constant speed. So for example at each 4 "sides" of the merry go round which direction is momentum . I know the velocity is always tangent to the circle at a specific point. does

  87. physics

    6.A child pushes a merry go-round from rest to a final angular speed of 0.46 rev/s with constant angular acceleration. In doing so, the child pushes the merry-go-round 1.3 revolutions. What is the angular acceleration of the merry go-round?

  88. phys5

    A child pushes a merry go-round from rest to a final angular speed of 0.44 rev/s with constant angular acceleration. In doing so, the child pushes the merry-go-round 1.8 revolutions. What is the angular acceleration of the merry go-round?

  89. momentum

    A playground merry-go-round has a disk-shaped platform that rotates with negligible friction about a vertical axis. The disk has a mass of 230 kg and a radius of 1.6 m. A 38- kg child rides at the center of the merry-go-round while a playmate sets it

  90. physics

    A child, hunting for his favorite wooden horse, is running on the ground around the edge of a stationary merry-go-round. The angular speed of the child has a constant value of 0.264 rad/s. At the instant the child spots the horse, one-quarter of a turn

  91. Physics

    A child pushes a merry go-round from rest to a final angular speed of 0.6 rev/s with constant angular acceleration. In doing so, the child pushes the merry-go-round 1.8 revolutions. What is the angular acceleration of the merry go-round? rad/s^2 This is

  92. Physics: merry-go-round question

    A playground merry-go-round of radius 1.92 m has a moment of inertia 411 kg m2 and is rotating at 10.4 rev/min. A child with mass 38.3 kg jumps on the edge of the merry-go-round. Assuming that the boy's initial speed is negligible, what is the new angular

  93. Physics

    How much force would need to be exerted on a merry-go-round with a mass of 178 kg and a radius of 2.4 m to make the speed of a child sitting on the edge 1.5 m/s within 5 seconds having started from rest?

  94. Physics

    A playground merry-go-round (which can be modeled as a disk) has a 3.4 m diameter, a mass of 240 kg and is rotating at 22.5 rpm. A 35 kg child running at 6.0 m/s, tangent to and in the same direction as the merry-go-round is turning, jumps on the outer

  95. Physics

    A horizontal 873 N merry-go-round of radius 1.11 m is started from rest by a constant horizontal force of 70.6 N applied tangentially to the merry-go-round. Find the kinetic energy of the merry-go-round after 3.59 s. The acceleration of gravity is 9.8 m/s2

  96. physics

    A merry-go-round with a a radius of R = 1.95 m and moment of inertia I = 192 kg-m2 is spinning with an initial angular speed of ω = 1.41 rad/s in the counter clockwise direection when viewed from above. A person with mass m = 63 kg and velocity v = 4.7

  97. Trigonometry

    Your horse on a merry-go-round is 18.3 m from the center. Suppose the merry-go-round makes 12.4 rev per ride. If you take 3 rides, through what angle do you move and how many meters do you travel?

  98. Trigonometry

    Your horse on a merry-go-round is 18.3 m from the center. Suppose the merry-go-round makes 12.4 rev per ride. If you take 3 rides, through what angle do you move and how many meters do you travel?

  99. Physics Classical Mechanics

    A playground merry-go-round has a radius of R= 2 m and has a moment of inertia Icm= 9×103kg⋅m2 about a vertical axis passing through the center of mass. There is negligible friction about this axis. Two children each of mass m= 30kg are standing on

  100. PHYSICS (HELP)

    A playground merry-go-round has a radius of R= 2 m and has a moment of inertia Icm= 9×103kg⋅m2 about a vertical axis passing through the center of mass. There is negligible friction about this axis. Two children each of mass m= 20kg are standing on

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