Rotational MotionTorque (NEET (NTA)National Eligibility cum Entrance Test (Medical) Physics): Questions 11  15 of 25
Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 2142 questions. Access all new questions we will add tracking exampattern and syllabus changes. View Sample Explanation or View Features.
Rs. 550.00 or
Question number: 11
» Rotational Motion » Torque
Question
A constant torque of 1000 N m, turns a wheel of moment of inertia 200 kg m ^{2} about an axis passing through the center. Angular velocity of the wheel after 3 s will be
Choices
Choice (4)  Response  

a.  1 rad/s 

b.  15 rad/s 

c.  10 rad/s 

d.  5 rad/s 

Question number: 12
» Rotational Motion » Torque
Question
A constant torque acting on a uniform circular wheel changes its angular momentum from Aq to 5Aq in 4 seconds. The magnitude of this torque is
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 13
» Rotational Motion » Torque
Question
A wheel having moment of inertia 2 kg m ^{2} about its vertical axis, rotates at the rate of 60 rpm about this axis. The torque which can stop the wheel’s rotation in 1 minute would be
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 14
» Rotational Motion » Torque
Question
A horizontal force F is applied such that the block remains stationary, then which of the following statement is false
Choices
Choice (4)  Response  

a.  F = N [where N is the normal reaction] 

b.  F will not produce torque 

c.  N will not produce torque 

d.  f = mg [where f is the friction force] 

Question number: 15
» Rotational Motion » Torque
Question
A wheel having moment of inertia 5 kg m ^{2} about its vertical axis, rotates at the rate of 60 rpm about this axis. The torque which can stop the wheel’s rotation in 1 minute would be
Choices
Choice (4)  Response  

a. 


b.  2 π 15 N m 

c. 


d. 

