physics

posted by .

A 5.0 m diameter merry-go-round is initially turning with a 4.6 s period. What is the speed of a child on the rim?

  • physics -

    T = (2pir)/v with T being the period, r being the radius, and v being the speed. Don't forget that radius is half the diameter.

    So, v*4.6s = 2*pi*2.5m

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. 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 …
  2. 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 …
  3. 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 …
  4. 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 …
  5. 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 …
  6. College Physics

    A 2.0 m diameter merry-go-round is initially turning with a 4.2 s period. It slows and stops in 22.0 seconds. Before slowing, what is the speed (in m/s) of a child on the rim?
  7. Physics

    A 5.2-m-diameter merry-go-round is initially turning with a 3.0s period. It slows down and stops in 28s. i found the v = 5.4 m/s, How many revolutions does the merry-go-round make as it stops?
  8. physics

    A 4.1-m-diameter merry-go-round is initially turning with a 4.2 period. It slows down and stops in 24 . Before slowing, what is the speed of a child on the rim?
  9. physics 23

    A 4.1-m-diameter merry-go-round is initially turning with a 4.2 period. It slows down and stops in 24 . How many revolutions does the merry-go-round make as it stops?
  10. 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 …

More Similar Questions