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A 2.5-kg, frictionless block is attached to an ideal spring with force constant 315N/m is undergoing...

A 2.5-kg, frictionless block is attached to an ideal spring with force constant 315N/m is undergoing simple harmonic motion. When the block has displacement 0.27 m, it is moving in the negative x-direction with a speed 4 m/s

part a: find the amplitude of the motion ? (........m)

part b: find the magnitude of the maximum force the spring exerts on the block? (..........N)

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