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8.4 Exercise 5

Avg difficulty 2.5

A particle of mass 4.0 kg is constrained to move along the x-axis under a single force F(x)=−cx3,F \left(x\right) = − c x^{3} , where c=8.0N/m3.c = 8.0 \text{N}/\text{m}^{3} . The particle’s speed at A, where xA=1.0m,x_{A} = 1.0 \text{m}, is 6.0 m/s. What is its speed at B, where xB=−2.0m?x_{B} = −2.0 \text{m}?

OpenStax University Physics Volume 1, 8.4 Potential Energy Diagrams and Stability, exercise 5

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Adapted from University Physics Volume 1 © 2016 Rice University. Licensed under CC BY 4.0. Source: University Physics Volume 1. Imported at revision db44eb9.