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Neutron stars are extremely dense objects that are formed from the remnants of supernova explosions. Many rotate very rapidly. Suppose that the mass of a certain spherical neutron star is twice the mass of the Sun and its radius is 5.0 km. Determine the greatest possible angular speed it can have so that the matter at the surface of the star on its equator is just held in orbit by the gravitational force.

First I would find escape velocity

https://www.physicsforums.com/latex_images/11/112728-0.png [Broken]

And using that velocity as the tangent I could find the angular velocity? Is that a correct assumption?

First I would find escape velocity

https://www.physicsforums.com/latex_images/11/112728-0.png [Broken]

And using that velocity as the tangent I could find the angular velocity? Is that a correct assumption?

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