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PennStateFan1
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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?
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?
I know how to get the first part.
U is the negative integral of F(x)
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
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?
Homework Statement
I know how to get the first part.
Homework Equations
U is the negative integral of F(x)
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