What is the circular orbit velocity formula and how is it used in physics?

The circular orbit velocity formula is v (GM/r), where v is the velocity, G is the gravitational constant, M is the mass of the central object, and r is the distance from the center. This formula is used in physics to calculate the velocity required for an object to stay in a circular orbit around a central mass, such as a planet or a star. It helps scientists understand the dynamics of celestial bodies and spacecraft in orbit.