NEET (NTA)National Eligibility cum Entrance Test (Medical) Physics: Questions 248  252 of 2142
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Passage
Consider a cylinder of mass M = 1kg and radius R = 1 m lying on a rough horizontal plane. It has a plank lying on its top as shown in the figure.
A force F = 55 N is applied on the plank such that the plank moves and causes the cylinder to roll. The plank always remains horizontal. There is no slipping at any point of contact.
Question number: 248 (2 of 3 Based on Passage) Show Passage
» Rotational Motion » Angular Momentum
Question
Find the value of frictional force at A
Choices
Choice (4)  Response  

a.  2.5 N 

b.  7.5 N 

c.  5.0 N 

d.  None of the above 

Question number: 249 (3 of 3 Based on Passage) Show Passage
» Rotational Motion » Angular Momentum
Question
Calculate the acceleration of cylinder.
Choices
Choice (4)  Response  

a.  10 m/s ^{2} 

b.  5 m/s ^{2} 

c.  20 m/s ^{2} 

d.  Question does not provide sufficient data or is vague 

Question number: 250
» Electrostatics » Equipotential Surfaces
Question
In the figure the charge Q is at the center of the circle. Work done by electrostatic force on q is maximum, when another charge q is taken from point P to ________. (Consider both the charges to be positive)
Choices
Choice (4)  Response  

a.  K 

b.  M 

c.  L 

d.  N 

Question number: 251
» Electrostatics » Electric Field Lines
Question
A charge particle is free to move in an electric field. It will travel
Choices
Choice (4)  Response  

a.  Always along a line of force 

b.  Along a line of force, if its initial velocity is zero 

c.  Along a line of force, if it has some initial velocity in the direction of an acute angle with the line of force 

d.  All of the above 

Question number: 252
» Laws of Motion » Force and Inertia
Question
A car is moving in a circular path of radius 100 m with velocity of 200 m/sec such that in each sec its velocity increases by 100 m/s, the net acceleration of car will be  (in m/sec)
Choices
Choice (4)  Response  

a.  10 √7 

b.  100 √17 

c.  100 √3 

d.  10 √3 
