The angular speed in radians/hours for daily rotation of our earth is:
Correct answer: D. π/12
- A. 2π
- B. 4π
- C. π/6
- D. π/12
Explanation
The formula for angular speed is: Angular speed = (Total angle covered) / (Time taken) d) π/12: This option is correct. The Earth rotates 360 degrees (2π radians) in 24 hours. To find the angular speed in radians per hour, we divide the total angle by the time taken: Angular speed = (2π radians) / (24 hours) = π/12 radians per hour.
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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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