New angular speed of merry-go-round is approximately

Assignment Help Physics
Reference no: EM13672526

A merry-go-round of radius R=2.0m has a moment of inertia I=250kg m^2, and is rotating at 10rpm. A child whose mass is 25 kg and is at rest grabs onto the edge of the merry-go-round. The new angular speed (in rpm) of the merry-go-round is approximately?

Reference no: EM13672526

Questions Cloud

Current in such a circuit lag the applied voltage by exactly : A 50Ω resistor is placed in series with a 40mH inductor. At what frequency will the current in such a circuit lag the applied voltage by exactly 45 deg.?
Determine what is its power : A light bulb is rated at 77 w when it is connected to a 95 v battery. To the nearest tenth of a watt, determine what is its power when connected to a 42 volt battery
What is the angular velocity of the two disks combined : A 1.6 kg disk with radius 0.63 m is rotating freely at 55 rad/s around an axis perpendicular to its center. A second disk that is not rotating is dropped onto the first disk so that their centers align, and they stick together. The mass of the second..
Compute what is the diameter of a tungsten wire : Compute what is the diameter (to the nearest tenth of an mm) of a tungsten wire that has the same resistance as a copper wire of the same length? The diameter of the copper wire is 5.4 millimeter
New angular speed of merry-go-round is approximately : A merry-go-round of radius R=2.0m has a moment of inertia I=250kg m^2, and is rotating at 10rpm. A child whose mass is 25 kg and is at rest grabs onto the edge of the merry-go-round. The new angular speed (in rpm) of the merry-go-round is approximate..
Obtain what the final speed of both vehicles after collision : A 732 kilogram car stopped at an intersection is rear-ended by a 1720 kilogram truck moving with a speed of 15.5 m/s. evaluate the final speed of both vehicles after collision
Skier starts at rest at the top of large hemispherical hill : A skier starts at rest at the top of a large hemispherical hill with radius (height) = R. Neglecting friction, show that the skier will leave the hill and become airborne at the distance of h = R/3below the top of the hill.
Evaluate what the coefficient of friction : A 3.9 kilogram block is pull by horizontal force of 50 Newton along rough horizontal surface at a constant velocity 6m/s. Evaluate what the coefficient of friction
Tetrahedral is attached to swivel in ceiling by light cord : A tetrahedral is attached to a swivel in the ceiling by a light cord of length L. When the ball is hit by a paddle, it swings in a horizontal circle by constant speed v, and the cord makes a constant angle β with the vertical direction. The ball goes..

Reviews

Write a Review

Physics Questions & Answers

  Find the tension in string as it passes through the vertical

A small rock with mass 0.12 is fastened to a massless string with length 0.80 to form a pendulum, find the tension in the string as it passes through the vertical

  Compute the magnitude of the magnetic field

An electric field of magnitude 190 V/m is directed perpendicular to a circular planar surface with radius 6.39 cm, determine the magnitude of the magnetic field at a radial distance 11.1 cm away from the center of the circular area

  Find the direction in which electrons travel

A current of 74.8 mA exists in a metal wire, In what direction do the electrons travel with respect to the current

  Determine the magnetic field-b at the origin

At a certain instant of time a particle with charge q = 12 microcoulombs is located at x=0, y=2m; its velocity at that time is v=30 m/s i. Find the magnetic field,B, at (a) the origin

  What is the focal length of the lens

An object is placed at a distance of 40 cm from a thin lens. If a virtual image forms at a distance of 50 cm from the lens, on the same side as the object, what is the focal length of the lens?

  Suppose that the hose unwinds without slipping

A 17.0-m length of hose is wound around a reel, which is originally at rest. The moment of inertia of the reel is 0.490kg·m2, and its radius is 0.160 m. When turning, friction at the axle exerts a torque of magnitude 3.20 N·mon the reel.

  What is the speed of the emitted electron

The glow-in-the-dark dials on some watches and some keychain lights shine with energy provided by the decay of radioactive tritium, 3^1H. What is the speed of the emitted electron

  Determine how far has the spring been compressed

A block of mass 10.0 kg slides from rest down a frictionless 35.0° incline and is stopped by a strong spring with k = 2.60 104 N/m. determine how far has the spring been compressed

  Calculate the maximum compression of the spring

A mass m1 = 8.99 kg at rest on a horizontal frictionless surfaceand connected to a wall by a spring with k = 70.0N / m collides with a second mass m2 = 5.00 kg, What is the maximum compression of the spring

  What work does the racket do on the ball

A tennis player receives a shot with the ball (0.0600 kg) traveling horizontally at 56.0 m/s and returns the shot with the ball traveling horizontally at 42.0 m/s, What work does the racket do on the ball

  What is the torque on the particle about the origin

Force F = (-9.0 N) i + (5.0 N) j acts on a particle with position vector r = (-5.0 m) j + (1.0 m) k. What is the torque on the particle about the origin

  Calculate what is its speed when it strikes the earth

An object is dropped from rest from aheight of 40 million meters above surface of the earth. If there isno air resistance, what is its speed when it strikes the earth

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd