A100 n box sits on a 30 degree incline. if the static coefficient of friction is 0.1, what is the magnitude of the static frictional force acting on the box? select one: a. 5.0 n
b. 8.7 n
c. 10n

f = 8.7 N                        

Explanation:

It is given that,

Weight of the box, W = 100 N

It is inclined at an angle of 30 degrees.

The coefficient of friction,

We need to find the magnitude of the static frictional force acting on the box. Let f is the frictional force. It is given by :

N is the normal force

f = 8.66 N

or

f = 8.7 N

So, the the static frictional force acting on the box is 8.7 N. Hence, this is the required solution.

it is the second option.