Answer:
friction force must be equal to the magnitude of weight of the object
Explanation:
When the object is stuck against the wall
then we will have
[tex]F_n = \frac{mv^2}{r}[/tex]
also we know that
[tex]mg = F_f[/tex]
so if the block is at rest and not sliding then in vertical direction the force must be balanced
so here we can say
[tex]F_g = F_f[/tex]
so friction force must be equal to the magnitude of weight of the object