Rotational Motion (NEET (National Eligibility cum Medical Entrance Test) Physics): Questions 104  107 of 125
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Question number: 104
» Rotational Motion » Concepts of Rotational Motion
Question
One solid sphere and a disc of same radius are falling along an inclined plane without slip. One reaches earlier than the other due to,
(1) Different size
(2) Different radius of gyration
(3) Different moment of inertia
(4) Different friction
Select the correct answers and mark it according to the following codes:
Choices
Choice (4)  Response  

a.  2 and 4 are correct 

b.  1 and 2 are correct 

c.  1 and 3 are correct 

d.  1, 2 and 3 are correct 

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Question number: 105
» Rotational Motion » Rotational Kinetic Energy
Question
A body is rolling down an inclined plane. Its translational and rotational kinetic energies are equal. The body is not a,
(1) Solid sphere
(2) Hollow sphere
(3) Solid cylinder
(4) Hollow cylinder
Select the correct answers and mark it according to the following codes:
Choices
Choice (4)  Response  

a.  2 and 4 are correct 

b.  1 and 2 are correct 

c.  1, 2 and 3 are correct 

d.  1 and 3 are correct 

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Question number: 106
» Rotational Motion » Moment of Inertia
Question
What is the moment of inertia of inertia of a wheel of mass m and radius R having two spokes each of mass m? (The axis of rotation perpendicular to plane and passing through center)
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


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Question number: 107
» Rotational Motion » Rigid Body Rotation Equations of Rotational Motion
Question
A wheel has a speed of 2100 revolutions per minute and is made to slow down at a rate of 5 radians /s ^{2}. The number of revolutions is makes before coming to rest is
Choices
Choice (4)  Response  

a.  770 

b.  543 

c.  722 

d.  272 

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