AP Physics C: Mechanics
2.5 Newton’s Second Law
An object of mass \(m\) is initially at rest at position \(x = 0\) on a horizontal frictionless surface. A single variable force given by \(F(x) = k x^3\) acts on the object in the positive x-direction, where \(k\) is a positive constant. What is the speed of the object when it reaches position \(x = D\)?
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