Find the kinetic energy needed to project a body of mass m from the centre of a ring of mass M and radius R so that it will never comne back.

Find the kinetic energy needed to project a body of mass m from the ce

1.	Find the kinetic energy needed to project a body of mass m from the centre of a ring of mass M and radius R so that it will never comne back.
Answer» ANSWER :`(GMM)/(R )`