Question

Question #02251

Answer 1

Look below,

Explanation:

The equation shows that F is `prop` to `1/r^2`

which means the the graph should represent a parabola, or a consent slope.

`r^2`, so it would be graph D that represents it.

Answer 2

A.

Explanation:

`Fprop1/r^2`

This means `F` is inversely proportional to `r`

Notice:

as `r->oo` `color(white)(888)1/r^2->0`

This means as r increases the curve will approach the x axis, which is a horizontal asymptote.

as `r->0` , `color(white)(888)1/r^2-> oo`

This means as r tends to `0` the curve will approach the y axis, which is a vertical asymptote.

Both these behaviours can be seen only in the graph A