A thin uniform disk of mass M has outer radius 4r and inner radius 3r. The work required to take a unit mass from point P pn its axis to infinity is?

Question

Himaja · Answer

The gravitational potential at a point P in the gravitational field is defined as the work required to bring a unit mass from infinity to the point P in the field. Hence the problem is solved if potential at P is calculated. Consider a coaxial and concentric ring of radius y and thickness dy Find potential at P due ti this element Integrate within proper limits. For y the limits being 3r and 4r. Required W = - (potential)

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A thin uniform disk of mass M has outer radius 4r and inner radius 3r. The work required to take a unit mass from point P pn its axis to infinity is?

A thin uniform disk of mass M has outer radius 4r and inner radius 3r. The work required to take a unit mass from point P pn its axis to infinity is?

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