Rotational Motion (NEET Physics): Questions 89  92 of 123
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Question number: 89
» Rotational Motion » Angular Momentum
Question
An inclined plane makes an angle 45° with the horizontal. A solid sphere rolling down this inclined plane from rest without slipping has a linear acceleration equal to,
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 90
» Rotational Motion » Moment of Inertia
Question
Four thin rods of same mass M and same length l form a square as shown in figure. Moment of inertia of this system about an axis through center O and perpendicular to its plane is,
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Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 91
» Rotational Motion » Concepts of Rotational Motion
Question
A disc is rolling (without slipping) on a horizontal surface. C is its centre and Q and P are two points equidistant from C. Let V _{P}, V _{Q} and V _{C} be the magnitude of velocities of points P, Q and C respectively, then
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Choice (4)  Response  

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b. 


c. 


d. 


Question number: 92
» Rotational Motion » Moment of Inertia
Question
From a uniform wire, two circular loops are made (i) P of radius r and (ii) Q of radius nr. If the moment of inertia of loop Q about an axis passing through its center and perpendicular to its plane is 125 times that of P about a similar axis, the value of n is (diameter of the wire is very much smaller than r or nr)
Choices
Choice (4)  Response  

a.  2 

b.  5 

c.  6 

d.  3 
