# A block of mass 2.00 kg is placed against a horizontal spring of constant k = 775 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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A block of mass 2.00 kg is placed against a horizontal spring of constant k = 775 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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Step 1

(a) the elastic potential ...

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### Work,Power and Energy 