If the earth suddenly stops rotating the value of 'g' at equator would:
Correct answer: C. Increase
- A. Decrease
- B. Remain changed
- C. Increase
- D. Become zero
Explanation
Please note that the correct option for the effect on 'g' at the equator if the Earth suddenly stops rotating is c) Increase. If the Earth suddenly stops rotating, the value of 'g' at the equator would increase. As mentioned earlier, the rotation of the Earth causes a centrifugal force at the equator that partially counteracts the gravitational force. When the Earth stops rotating, this centrifugal force disappears, and the net force of gravity becomes stronger, leading to an increase in 'g' at the equator.
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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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