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A small object with mass mm = 0.0900 kg moves along the +x-axis. The only force...

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Physics

A small object with mass mm = 0.0900 kg moves along the +x-axis.The only force on the object is a conservative force that has thepotential-energy function U(x)=−αx2+βx3 where α = 4.50 J/m2 and β =0.300 J/m3. The object is released from rest at small x.

1-When the object is at x = 4.00 m, what is its speed?

Express your answer with the appropriate units.

2-When the object is at x = 4.00 m, what is the magnitude of itsacceleration?

Express your answer with the appropriate units.

3-What is the maximum value of x reached by the object duringits motion?

Express your answer with the appropriate units.

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