Question

help please number 7 ..i dont understand the concept of this section and the hw either

Answer 1

@agent0smith

Answer 2

\[\large W = \int\limits_{a}^{b}F dx\]
where F = kx and k is a constant.

Use the 10 lbs and 4 inches to find k first.

Answer 3

oh okay so how would i find that ?

Answer 4

lbs is a unit of force, inches is a unit of distance...

Answer 5

oh okay so then

Answer 6

So find k.

I'm not sure how your book approached it, so this is partly a physics approach.

Answer 7

oh i read my notes but the thing is that he taught it too fast and moved on to the next section

Answer 8

F = kx and k is a constant.

Use the 10 lbs and 4 inches to find k first.

Plug them in.

Answer 9

lol you could just as easily have typed. I hate when people use the drawing tool unnecessarily

10 = k*4

Answer 10

pfft lool

Answer 11

okay so then k= 5/2

Answer 12

I wish i could take away medals from you out of spite, or at least delete your worthless drawing pic :P

Now go back to my first post.

The limits of integration would be from 0 (natural state) to however far it is stretched.

Answer 13

haha, welp sadly that cant happen :p

Answer 14

Are you working it out?

Answer 15

oops sorry ..
i got 15/4

Answer 16

@agent0smith

Answer 17

Show your work...

Answer 18

Looks about right.

Answer 19

okie :D