A 29 kg object is acted on by a conservative force given by F = (-2.4)x + (-5.2)x2, with F in newtons and x in meters. Take the potential energy associated with the force to be zero when the object is at x = 0. What is the potential energy of the system associated with the force when the object is at x = 2.0 m?(adsbygoogle = window.adsbygoogle || []).push({});

If the object has a velocity of 5.3 m/s in the negative direction of the x-axis when it is at x = 5.0 m, what is its speed when it passes through the origin?

1. The problem statement, all variables and given/known data

I know how to get the first part.

2. Relevant equations

U is the negative integral of F(x)

3. The attempt at a solution

the first part is - integral from 0 to 2 of -2.4x-5.2x^2=18.7

I don't know where to begin with the second part

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# Homework Help: Help with conservative forces

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