A small block with mass0.0475kgslides in a vertical circle of radius0.0770mon the inside of a circular track. There is nofriction between the track and the block. At the bottom of theblock's path, the normal force the track exerts on the block hasmagnitude 3.90N
PartA
What is the magnitude of the normalforce that the track exerts on the block when it is at the top ofits path?
Express your answer with theappropriate units.
