In simple harmonic motion, the restoring force is minimum at:
Correct answer: A. Mean position
- A. Mean position
- B. Extreme position
- C. Midpoint of mean and extreme position
- D. None of the above
Explanation
In simple harmonic motion, the restoring force is the force that brings an oscillating object back towards its equilibrium position. The equilibrium position is the mean position where the object is neither compressed nor stretched. At this point, the restoring force is minimum because there is no displacement from the equilibrium position. It's like the calm center of a swinging pendulum or a spring at its natural length.
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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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