Phyiscs: A 4.1 kg block is attached to a spring with a force constant of 450N/m…..?

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A 4.1 kg block is attached to a spring with a force constant of 450N/m , as shown in the figure

Find the work done by the spring on the block as the block moves from A to B along paths 1 and 2.

1 Answer

  • Path is immaterial in this problem.

    Energy added to spring is E = ½kx² = ½ 450N/m (0.02m)² = 0.09 J

    so the work done by the spring on the block is -0.09 J.

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