A shuttle moves between station A and B on earth along a

Last updated: 7/26/2022

A shuttle moves between station A and B on earth along a vacuum tunnel which is a chord across the earth as shown. The shuttle moves on the bases of gravitational force only and the tunnel is frictionless. Find maximum speed attained by the shuttle. (g = 10 m/s²) 4 km/s 3 km/s 2 km/s 1 km/s