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Conservation of Angular Momentum Solutions Library

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9 solutions

Conservation of Angular Momentum

Q. Disk A, with a mass of 2.0 kg and a radius of 40 cm, rotates clockwise about a frictionless vertical axle at 20 rev/s. Disk B, also 2.0 kg but with...

Solved • Feb 10, 2021

Conservation of Angular Momentum

Q. A merry-go-round is a playground ride that consists of a large disk mounted so that it can freely rotate in a horizontal plane. The merry-go-round ...

Solved • Jul 15, 2020

Conservation of Angular Momentum

Q. The angular momentum of a system remains constant when: A. the total kinetic energy is constantB. when no net external force acts on the systemC. w...

Solved • Apr 7, 2020

Conservation of Angular Momentum

Q. A playground merry-go-round has a radius of 3 m and a rotational inertia of 600 kg · m2 . It is initially spinning at 0.8 rad/s when a 20 kg child ...

Solved • Oct 6, 2017

Conservation of Angular Momentum

Q. A merry-go-round spins freely when Janice moves quickly to the center along a radius of the merry-go-round. It is true to say that (A) the moment ...

Solved • Jun 6, 2017

Conservation of Angular Momentum

Q. A figure skater on ice spins on one foot so there is minimal friction. She pulls in her arms and her rotational speed increases. Choose the best st...

Solved • May 16, 2017

Conservation of Angular Momentum

Q. The sketch shows the top view of a merry-go-round which is rotating clockwise. A child jumps on the merry-go-round in three different ways:  the ch...

Solved • May 16, 2017

Conservation of Angular Momentum

Q. A man holding a heavy object in each hand stands on a small platform that is free to rotate about a vertical axis. Initially he is standing with hi...

Solved • Feb 7, 2017

Conservation of Angular Momentum

Q. A horizontal platform in the shape of a uniform disk (I = 1/2 MR  2 for an axis at its center) is rotating without friction about a vertical axis a...

Solved • Feb 7, 2017