A box of canned goods slides down a ramp from street level into the basement of a grocery store with acceleration 0.82 m/s2 directed down the ramp. The ramp makes an angle of 38° with the horizontal. What is the coefficient of kinetic friction between the box and the ramp?

Explanation:

The given data is as follows.

     a = 0.82 ,      Angle () =

So, in x-direction the force will act on the box. Hence, formula for normal force and x-component of the gravitational force is as follows.

              ............. (1)

In y-direction,

            .............. (2)

and,          f = ........... (3)

Now, we will use equations (1), and (3) in equation (2) as follows.

        = ma

Then,

                       =

                       =

                       = 0.22

Thus, we can conclude that the coefficient of kinetic friction between the box and the ramp is 0.22.

nec chapter 5 contains

c. information on special occupancy areas

nec chapter 6 covers

a. special equipment

which of the following rules contain the words shall or shall not and must be adhered to?

b. mandatory rules

which of the following rules identify actions that are allowed but not required and typically cover options or alternative methods?

c. optional rules

which of the following serves as the introduction to the nec and provides an overview of the book?

a. nec article 90

organizations that test products for safety are

c. nrtls

the nec is published by the

a national fire protection association

the nec is divided into

b. 9 chapters

the nec provides informative annexes for

c. informational materials and examples

two terms from nec article 100 that trainees should become familiar with are

b. labeled and listed

explanation:

answer: its c lololo