A 0.200-kg object,attached to a spring with spring constant k = 16.0 N/m,is moving on a horizontal frictionless surface in simple harmonic motion of amplitude of 0.0840 m.What is its speed at the instant when its displacement is 0.0420 m? (Hint: Use conservation of energy. )
A)6.51 m/s
B)0.269 m/s
C)65.1 cm/s
D)84.0 cm/s
E)46.0 cm/s

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The Answer of A 0.200-kg object,attached to a spring with spring constant k = 16.0 N/m,is moving on a horizontal frictionless surface in simple harmonic motion of amplitude of 0.0840 m.What is its speed at the instant when its displacement is 0.0420 m? (Hint: Use conservation of energy. )
A)6.51 m/s
B)0.269 m/s
C)65.1 cm/s
D)84.0 cm/s
E)46.0 cm/s

A 0200-Kg Object,attached to a Spring with Spring Constant K =