Question

The thin-walled tube of mass m rotates around its axis and next to it there

Such a tube is initially stationary on a rut

horizontal (drawn) .Friction coefficient between all adjacent surfaces

and equal

μ =2

. Calculate the motion acceleration of the original tube

Answer 1

Answer

We know

The friction force depends on the mass of an object plus the coefficient of sliding friction between the object and the surface on which it slides. Subtract this force from the applied force to find the acceleration of the object.

Acceleration is given by

$a=\frac{F_a-\mu mg}{m}\\=\frac{F_a-2mg}{m}$