If the radius stays the same but acceleration doubles what happens

Ok so Where is the centripetal acceleration on an object, is the velocity of an object, and is the radius in which the object moves in a circle. The radius has an inverse relationship with centripetal acceleration, so when the radius is halved, the centripetal acceleration is doubled.Radial acceleration is directly proportional to the square of the linear speed and inversely proportional to the radius of the curved pathway. Radial acceleration is directly proportional to the product of the square of the angular speed and the radius of the curved pathway.

Explanation:

layer a is the exosphere and layer b is the thermosphere.   is the answer i think but i hope this .