Question

A block of mass 2.80 kg is placed against a horizontal spring of constant k =...

A block of mass 2.80 kg is placed against a horizontal spring of constant k = 805 N/m and pushed so the spring compresses by 0.0800 m.

A) What is the elastic potential energy of the block-spring system (in J)?

__________ J

B) If the block is now released and the surface is frictionless, calculate the block's speed (in m/s) after leaving the spring.

_______ M/S

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Answer #1

A. Elastic potential energy of block spring system can be find using below formula

  

B. In this case elastic potential energy is converted into kinetic energy.

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