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Suppose that the angular velocity of rotation of Earth is increased. Then, as a consequence,
  • a)
    weight of the object everywhere on the Earth will decrease
  • b)
    weight of the object everywhere on the Earth will increase
  • c)
    except at poles, weight of the object on the Earth will decrease
  • d)
    there will be no change in weight anywhere on the Earth
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
Suppose that the angular velocity of rotation of Earth is increased. T...
Value of the acceleration due to gravity at any latitude φ,

g' = g - ω
2
Rcos
2
φ; w
here φ is latitude.
There will be no change in gravity at poles as φ = 90°.
At all other points, as 
ω
 increases, 'g' will decrease.
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Most Upvoted Answer
Suppose that the angular velocity of rotation of Earth is increased. T...


Effect of Increased Angular Velocity of Earth on Weight

Weight of an object is the force exerted on it due to gravity. When the angular velocity of rotation of Earth is increased, it affects the weight of objects on Earth in the following way:

Coriolis Effect
- The increase in angular velocity will cause the Coriolis effect to become more pronounced.
- This effect leads to a decrease in the apparent weight of objects at locations away from the poles.
- At the poles, the effect of the increased angular velocity on weight is negligible.

Centrifugal Force
- The increase in angular velocity also results in a greater centrifugal force acting on objects due to Earth's rotation.
- This centrifugal force counteracts a small portion of the gravitational force, leading to a decrease in weight.

Conclusion
- Therefore, as a consequence of the increased angular velocity of rotation of Earth, except at the poles, the weight of objects on Earth will decrease.
- This phenomenon is a result of the combined effects of the Coriolis effect and the centrifugal force.
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Suppose that the angular velocity of rotation of Earth is increased. Then, as a consequence,a)weight of the object everywhere on the Earth will decreaseb)weight of the object everywhere on the Earth will increasec)except at poles, weight of the object on the Earth will decreased)there will be no change in weight anywhere on the EarthCorrect answer is option 'C'. Can you explain this answer?
Question Description
Suppose that the angular velocity of rotation of Earth is increased. Then, as a consequence,a)weight of the object everywhere on the Earth will decreaseb)weight of the object everywhere on the Earth will increasec)except at poles, weight of the object on the Earth will decreased)there will be no change in weight anywhere on the EarthCorrect answer is option 'C'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about Suppose that the angular velocity of rotation of Earth is increased. Then, as a consequence,a)weight of the object everywhere on the Earth will decreaseb)weight of the object everywhere on the Earth will increasec)except at poles, weight of the object on the Earth will decreased)there will be no change in weight anywhere on the EarthCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Suppose that the angular velocity of rotation of Earth is increased. Then, as a consequence,a)weight of the object everywhere on the Earth will decreaseb)weight of the object everywhere on the Earth will increasec)except at poles, weight of the object on the Earth will decreased)there will be no change in weight anywhere on the EarthCorrect answer is option 'C'. Can you explain this answer?.
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