What is the minimum velocity with which a body of mass m must enter a vertical loop of radius R so that it can complete the loop

What is the minimum velocity with which a body of mass m must enter a

1.	What is the minimum velocity with which a body of mass m must enter a vertical loop of radius R so that it can complete the loop
Answer» `SQRT(2gR)` `sqrt(3gR)` `sqrt(5gR)` `sqrt(GR)` SOLUTION :Knowledgebasedquestion