Question

Can someone please verify my answer.

Answer 1

I got a negative answer for number #5. Could someone please verify

Answer 2

@mathmale @518nad

Answer 3

Work = Force \(\times\) Distance.

Your distance is positive (from x=1 to x=5), and your force is negative.
(because F(x)<0, \(\forall x\in[1,5]\))

Answer 4

So the negative work makes sense, but if it is that number, that is what we need to check.

Answer 5

\[\int\limits_{1}^{5}(-4x^3+x)dx\] is what i did.

Answer 6

very good!

Answer 7

If you sure you don't need a check on your integration, then we can both go on ...

Answer 8

I used symolab to check my answer for the integation. But I wasnt sure about the negative.

Answer 9

Yes, your integration is correct, and your sign is correct.

Answer 10

-612J

Answer 11

Thank you for the verification

Answer 12

No problem:)