Multiple Choice
A 0.39 kg block on a horizontal frictionless surface is attached to a spring whose force constant is 570 N/m.The block is pulled from its equilibrium position at x = 0 m to a displacement x = +0.080 m and is released from rest.The block then executes simple harmonic motion along the x-axis (horizontal) .When the displacement is x = 0.057 the kinetic energy of the block is closest to:
A) 0.90 J
B) 0.84 J
C) 0.95 J
D) 1.0 J
E) 1.1 J
Correct Answer:

Verified
Correct Answer:
Verified
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