Suppose a vertical tunnel is dug along the diameter of the earth, assumed to be a sphere of uniform mass density ρ. If a body of mass m is thrown in this tunnel, its acceleration at a distance y from the centre is given by: assumed to be a sphere of uniform mass density ρ. If a body of mass m is thrown in this tunnel its acceleration at a distance y from the centre is given by: Suppose a vertical tunnel is dug along the diameter of the earth September 19, 2020 Category: Arihant Physics by D.C Pandey , Chapter 10 - Gravitation , Volume 1 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related