A block of mass 3.20 kg is placed against a horizontal spring of constant k = 865 N/m and pushed so the spring compresses by 0.0650 m. HINT (a) What is the elastic potential energy of the block-spring system (in 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. n/s
Answers: 1
), measured in joules, by the following formula:
(1)
- Spring constant, measured in newtons per meter.
- Deformation of the spring, measured in meters.
and 
, then the elastic potential energy is:
(2)
- Mass, measured in kilograms.
- Final speed, measured in meters per second.
, then the final speed of the block is: 
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A block of mass 3.20 kg is placed against a horizontal spring of constant k = 865 N/m and pushed so...
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