Before hanging new william morris wallpaper in her bedroom, brenda sanded the walls lightly to smooth out some irregularities on the surface. the sanding block weighs 1.70 n and brenda pushes on it with a force of 3.00 n at an angle of 30.0° with respect to the vertical, and angled toward the wall. what is the coefficient of kinetic friction between the wall and the block?

1.0193

Explanation:

The concepts that we apply here is Frictional Force with a Force on the object with a angle.

We know that Frictional Force is equal to

The force acts downward because the moving is upward, then from the image that I attached, the forve is equal to,

In Y we have then

For the horizontal componentes we have that

Using the first equation we have that

Re-arrange for

what question you dont ask a question

explanation: