# A 0.20 kg object, attached to a spring with spring constant k = 10 N/m, is moving on a horizontal frictionless surface in simple harmonic motion of amplitude of 0.080 m. What is its speed at the instant when its displacement is 0.040 m? (Hint: Use conservation of energy.)

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1. 49cm/s

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2. A 0.20 kg object, attached to a spring with spring constant k = 10 N/m, is moving on a horizontal frictionless surface in simple harmonic motion of amplitude of 0.080 m. What is its speed at the instant when its displacement is 0.040 …

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3. ;mebemf hin fjehi kbfjnelfm jbsifjf kebo,lfrbiej

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4. fdsfsfd fsdf fsd fds

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5. tangina nyo mag aral kase kayo

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6. Here's another hint: The total energy is

(1/2)k*(Amplitude)^2

When displacement is half the amplitude, potential energy is 1/4 of the total energy. The rest is kinetic.

You should be able to complete the problem

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