Spring potential energy just before block is released

Reference no: EM13648012

A 1kg block on a horizontal surface is attached to a light horizontal spring of force constant 500N/m. The block is pulled sothat the spring is stretched 5cm from its equilibrium. The block is then released from rest.

A.) What is the spring potential energy just before the blockis released?
B.) If the surface is smooth, what is the block's speed as itpasses through the spring equilibrium position?
C.) If the surface has a coefficient offriction , what is the work done by the frictionforce during the block's motion from maximum stretch to the springequilibrium position?
D.) What is the block's speed in this case as it passesthrough the spring equilibrium position?

Reference no: EM13648012

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