In which case angular work is being done:
Correct answer: D. Both "A" and "B"
- A. If angular velocity is increased
- B. If angular velocity is decreased
- C. If radius is decreased
- D. Both "A" and "B"
Explanation
Angular work is being done When external torque acts on the body that changes the angular velocity (either increase or decrease).
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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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