Consider a small spherical ball inside a circular tunnel of

Last updated: 6/21/2023

Consider a small spherical ball inside a circular tunnel of radius R and inner diameter size of the tunnel nearly equal to that of the spherical ball rigidly held in a vertical plan shown in the figure Assume no friction between the surface of the tunnel and the spherical ball Which of the following is correct R If u 5gR 2 then the ball loses contact with the tunnel s sides at some instant during the motion If u 11gR 2 then the ball loses contact with the tunnel s sides at some instant during the motion If u 11gR 2 the ball will come to rest at some instant before it reaches the highest point of the circular motion If u 5gR 2 the contact force acting on the ball is zero at the instant when it comes to rest A