A particle is moving in a circle of radius r under the action of a force F= alpha r^(2) which is directed towards centre of the circle. Total mechanical energy (kinetic energy + potential energy) of the particle is (take potential energy =0 for r= 0) :

A particle is moving in a circle of radius r under the action of a for

1.	A particle is moving in a circle of radius r under the action of a force F= alpha r^(2) which is directed towards centre of the circle. Total mechanical energy (kinetic energy + potential energy) of the particle is (take potential energy =0 for r= 0) :
Answer» `(1)/(2) alpha r^(3)` `(5)/(6) alpha r^(3)` `(4)/(3) alpha r^(3)` ` alpha r^(3)` Answer :B