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A disc of mass M and radius R is rolling with angular speed ω on a horizontal plane as shown in Figure. The magnitude of angular momentum of the disc about the origin O is
- a)(1/2) MR2ω
- b)MR2ω
- c)(3/2) MR2ω
- d)2 MR2ω
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
A disc of mass M and radius R is rolling with angular speed ω on...
KEYCONCEPT. The disc has two types of motion namely translational and rotational. Therefore there are two types of angular momentum and the total angular momentum is the vector sum of these two.
In this case both the angular momentum have the same direction (perpendicular to the plane of paper and away from the reader).
In this case both the angular momentum have the same direction (perpendicular to the plane of paper and away from the reader).
LT = angular momentum due to translational motion.
LR = angular momentum due to rotational motion about C.M.
L = MV × R + Icmω
Icm = M.I. about centre of mass C.
(v = Rω in case of rolling motion and surface at rest)
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A disc of mass M and radius R is rolling with angular speed ω on a horizontal plane as shown in Figure. The magnitude of angular momentum of the disc about the origin O isa)(1/2) MR2ωb)MR2ωc)(3/2) MR2ωd)2 MR2ωCorrect answer is option 'C'. Can you explain this answer? for JEE 2026 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about A disc of mass M and radius R is rolling with angular speed ω on a horizontal plane as shown in Figure. The magnitude of angular momentum of the disc about the origin O isa)(1/2) MR2ωb)MR2ωc)(3/2) MR2ωd)2 MR2ωCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for JEE 2026 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A disc of mass M and radius R is rolling with angular speed ω on a horizontal plane as shown in Figure. The magnitude of angular momentum of the disc about the origin O isa)(1/2) MR2ωb)MR2ωc)(3/2) MR2ωd)2 MR2ωCorrect answer is option 'C'. Can you explain this answer?.
A disc of mass M and radius R is rolling with angular speed ω on a horizontal plane as shown in Figure. The magnitude of angular momentum of the disc about the origin O isa)(1/2) MR2ωb)MR2ωc)(3/2) MR2ωd)2 MR2ωCorrect answer is option 'C'. Can you explain this answer? for JEE 2026 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about A disc of mass M and radius R is rolling with angular speed ω on a horizontal plane as shown in Figure. The magnitude of angular momentum of the disc about the origin O isa)(1/2) MR2ωb)MR2ωc)(3/2) MR2ωd)2 MR2ωCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for JEE 2026 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A disc of mass M and radius R is rolling with angular speed ω on a horizontal plane as shown in Figure. The magnitude of angular momentum of the disc about the origin O isa)(1/2) MR2ωb)MR2ωc)(3/2) MR2ωd)2 MR2ωCorrect answer is option 'C'. Can you explain this answer?.
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