Below the fixed end of the insulating horizontal thread

Last updated: 6/8/2023

Below the fixed end of the insulating horizontal thread there is a fixed charge A of 20 C which is same as the charge of the small body B of mass m at the end of the thread as shown in the figure The body B is released and when it is at the lowest position the thread is vertical Assume that thread does not strike the fixed charge The body B comes to a stop at the lowest position 3 m 4 m m do What is the initial acceleration of the small body A 8 8 m s C 9 5 m s B 10 5 m s D None of these