Rotational MotionTorque (NEET Physics): Questions 11  15 of 24
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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. 

