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OpenStudy (anonymous):
A 10-kg block on a rough horizontal surface is attached to a light spring (force constant = 1.4 kN/m). The block is pulled 8.0 cm to the right from its equilibrium position and released from rest. The frictional force between the block and surface has a magnitude of 30 N. What is the kinetic energy of the block as it passes through its equilibrium position?
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OpenStudy (anonymous):
@myininaya
OpenStudy (anonymous):
did you draw the force diagram (free body diagram)?
OpenStudy (anonymous):
|dw:1402430633918:dw|
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