Question:
Assume that a tunnel is dug across the Earth radius R
Last updated: 6/13/2023
![Assume that a tunnel is dug across the Earth radius R](https://media.kunduz.com/media/sug-question-candidate/20210701025957661059-2226298.jpg?h=512)
Assume that a tunnel is dug across the Earth radius R passing through its centre Find the time a particle takes to reach centre of Earth if it is projected into the tunnel from surface of Earth with speed needed for it to escape the gravitational field of Earth