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A circular disc is rotating with angular velocity ω. A man sitting at the edge walks towards the centre of disc, then the angular velocity ω
- a)Decrease
- b)Increases
- c)Halved
- d)Is not changed
Correct answer is option 'B'. Can you explain this answer?
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Most Upvoted Answer
A circular disc is rotating with angular velocity ω. A man sitti...
The angular velocity of a rotating circular disc is the rate at which the disc rotates around its center, measured in radians per second (rad/s). It is denoted by the symbol ω (omega). The angular velocity of the disc determines how fast different points on the disc are moving in a circular path.
The angular velocity can be calculated using the formula:
ω = Δθ / Δt
Where ω is the angular velocity, Δθ is the change in angle, and Δt is the change in time. The angular velocity can also be calculated as the ratio of the linear velocity (v) at a given distance from the center of the disc to the radius (r) of the disc:
ω = v / r
This formula shows that as the radius of the disc increases, the linear velocity at a given distance from the center also increases, resulting in a higher angular velocity.
The angular velocity of a rotating circular disc can be used to determine various properties of the disc, such as its moment of inertia, kinetic energy, and angular momentum. It is an important concept in rotational mechanics.
The angular velocity can be calculated using the formula:
ω = Δθ / Δt
Where ω is the angular velocity, Δθ is the change in angle, and Δt is the change in time. The angular velocity can also be calculated as the ratio of the linear velocity (v) at a given distance from the center of the disc to the radius (r) of the disc:
ω = v / r
This formula shows that as the radius of the disc increases, the linear velocity at a given distance from the center also increases, resulting in a higher angular velocity.
The angular velocity of a rotating circular disc can be used to determine various properties of the disc, such as its moment of inertia, kinetic energy, and angular momentum. It is an important concept in rotational mechanics.
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A circular disc is rotating with angular velocity ω. A man sitti...
Moment of inertia decreases then angular velocity increases
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A circular disc is rotating with angular velocity ω. A man sitting at the edge walks towards the centre of disc, then the angular velocity ωa)Decreaseb)Increasesc)Halvedd)Is not changedCorrect answer is option 'B'. Can you explain this answer?
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A circular disc is rotating with angular velocity ω. A man sitting at the edge walks towards the centre of disc, then the angular velocity ωa)Decreaseb)Increasesc)Halvedd)Is not changedCorrect answer is option 'B'. 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 A circular disc is rotating with angular velocity ω. A man sitting at the edge walks towards the centre of disc, then the angular velocity ωa)Decreaseb)Increasesc)Halvedd)Is not changedCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A circular disc is rotating with angular velocity ω. A man sitting at the edge walks towards the centre of disc, then the angular velocity ωa)Decreaseb)Increasesc)Halvedd)Is not changedCorrect answer is option 'B'. Can you explain this answer?.
A circular disc is rotating with angular velocity ω. A man sitting at the edge walks towards the centre of disc, then the angular velocity ωa)Decreaseb)Increasesc)Halvedd)Is not changedCorrect answer is option 'B'. 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 A circular disc is rotating with angular velocity ω. A man sitting at the edge walks towards the centre of disc, then the angular velocity ωa)Decreaseb)Increasesc)Halvedd)Is not changedCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A circular disc is rotating with angular velocity ω. A man sitting at the edge walks towards the centre of disc, then the angular velocity ωa)Decreaseb)Increasesc)Halvedd)Is not changedCorrect answer is option 'B'. Can you explain this answer?.
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