Question

A marble of mass
m
is moving inside a frictionless cone of semi-vertical angle
θ
. If the path of marble is circular in a horizontal plane and its speed is
V
, then radius of circular path is  

 
V
2
tan
θ
g
V
2
sin
θ
g
V
2
cot
θ
g
V
2
cos
θ
g

Answer 1

Answer:

Sorry , I can't understand the question.

Explanation: