A block of mass 0.4 kg is attached to a spring (k = 160 N/m). It is displaced 0.06 m and released. What is the maximum acceleration?
Correct answer: C. 24 m/s2
- A. 12 m/s²
- B. 18 m/s²
- C. 24 m/s2
- D. 30 m/s²
Explanation
The maximum acceleration amax = ω²A = k/m A = 160/0.4(0.06) = 24 m/s2 .
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About Simple Harmonic Motion
Simple harmonic motion is oscillation in which acceleration is directly proportional to displacement and directed toward the equilibrium position. Work includes displacement, velocity, acceleration, phase, period, frequency, amplitude and energy, with applications to springs and simple pendulums. The restoring force and the conditions for SHM distinguish it from general periodic motion.
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