In the figure shown, a small ball of mass 'm' can move without sliding in a fixed cylindrical track of radius R in vertical plane. It is released from the top. The resultant force on the ball at the lowest point of the track is

In the figure shown, a small ball of mass 'm' can move without sliding

1.	In the figure shown, a small ball of mass 'm' can move without sliding in a fixed cylindrical track of radius R in vertical plane. It is released from the top. The resultant force on the ball at the lowest point of the track is
Answer» `(10MG)/(7)` `(17mg)/(7)` `(3MG)/(7)` zero Answer :A