Question

the Position depends on force f=7-2x+3xsqure Newtown acts on the small body and displaces for x1=0 metere to x2=5metere calculate the work done​

Answer 1

Answer:

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Explanation:

Given that,

Force F=7−2x+3x2

We know that,

  F=dxdw

 dw=Fdx

Now, the work done is

  ∫dw=0∫5F⋅dx

 ∫dw=0∫5(7−2x+3x2)dx

 W=[7x−22x2+33x3]05

 W=35−25+125

 W=135J

Hence, the work done is 135 J