Answer :

Let the mass of Earth be . Here, , and .

Now, the force exerted by the wall on the particle is perpendicular to the tunnel. This force will be balanced by the gravitational force exerted by the sphere of radius r. The component of force perpendicular to the tunnel is given by .



Therefore,


Here, and Force due to the sphere of radius r is


Therefore,



Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
caricature
view all courses
RELATED QUESTIONS :

<span lang="EN-USHC Verma - Concepts of Physics Part 1

Molecules in air Physics - Exemplar

How is the gravitPhysics - Exemplar

The gravitationalPhysics - Exemplar

We can shield a cPhysics - Exemplar

<span lang="EN-USHC Verma - Concepts of Physics Part 1

Choose the wrong Physics - Exemplar

Which of the follNCERT - Physics Part-I

<span lang="EN-USHC Verma - Concepts of Physics Part 1

<span lang="EN-USHC Verma - Concepts of Physics Part 1