The total energy of a simple harmonic motion at the mean position is:
Correct answer: D. both K.E and P.E
- A. K.E:
- B. P.E:
- C. zero
- D. both K.E and P.E
Explanation
Explanation: At the mean position of a simple harmonic motion, the kinetic energy (K.E) is maximum and the potential energy (P.E) is also maximum. Since the total mechanical energy of the system is the sum of kinetic and potential energies, both K.E and P.E contribute to the total energy at the mean position.K.E: This is incorrect because the potential energy is also present at the mean position.P.E: This is incorrect because the kinetic energy is also present at the mean position.
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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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