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A horizontal spring attached to a wall has a force constant of k = 770 N/m....

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Physics

A horizontal spring attached to a wall has a force constant of k= 770 N/m. A block of mass m = 2.00 kg is attached to the springand rests on a frictionless, horizontal surface as in the figurebelow.

(a) The block is pulled to a position xi = 5.80 cm fromequilibrium and released. Find the potential energy stored in thespring when the block is 5.80 cm from equilibrium.

J

(b) Find the speed of the block as it passes through theequilibrium position.

m/s

(c) What is the speed of the block when it is at a position xi/2= 2.90 cm?

m/s

Answer & Explanation Solved by verified expert
3.8 Ratings (478 Votes)
This is an energy balance problem since there is no friction Change in energy of the system 0 Change in energy of the system 12kxf2 xi2 12mvf2 vi2 a When    See Answer
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