It takes 35 J to push a large box 5 m across a floor. Assuming the push is in the same direction as the
move, what is the magnitude of the force on the
box?
a. 5N b. 7N c. 35 N d. 175 N e. none of
the above

7 N

Explanation:

Work = Force * distance

35J = Force * 5 meters               Divide by 5

35/5 = Force

7 Newtons = Force

d

explanation:

v=uf/(u-f)

= 5.10/(5-10) convex lens has positive focal length

=50/-5

=-10 cm (formed at other side)

we have been given a quadratic function and we need to restrict the domain such that it becomes a one to one function.

we know that vertex of this quadratic function occurs at (5,2).

further, we know that range of this function is .

if we restrict the domain of this function to either or , it will become one to one function.

let us know find its inverse.

upon interchanging x and y, we get:

let us now solve this function for y.

hence, the inverse function would be if we restrict the domain of original function to and the inverse function would be if we restrict the domain to .