A body is revolving in a vertical circle with constant mechanical energy. The speed of he body at the highest point is sqrt(2rg). The speed of the body at the lowest point is

A body is revolving in a vertical circle with constant mechanical ener

1.	A body is revolving in a vertical circle with constant mechanical energy. The speed of he body at the highest point is sqrt(2rg). The speed of the body at the lowest point is
Answer» `sqrt(7 gr)` `sqrt(6gr)` `sqrt(8gr)` `sqrt(9GR)` Answer :B