If the kinetic energy of a body increases by 0.1%, the percent increase of its momentum will be 

1.  0.05%

2.  0.1%

3.  1.0%

4.  10%

Subtopic:  Linear Momentum |
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A solid cylinder and a hollow cylinder, both of the same mass and same external diameter are released from the same height at the same time on an inclined plane. Both roll down without slipping. Which one will reach the bottom first?

1.  Both together only when the angle of inclination of the plane is 450

2.  Both together

3.  Hollow cylinder

4.  Solid cylinder

Subtopic:  Rolling Motion |
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A man is sitting on a rotating table with his arms stretched outwards.  When he suddenly folds his arms inside, then

1. his angular velocity will decrease

2. his angular velocity remains constant

3. his moment of inertia decreases

4. angular momentum increases

Subtopic:  Moment of Inertia |
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A body of mass M and radius R is rolling horizontally without slipping with speed v.  It then rolls up a hill to a maximum height h.  If h=5v26g, what is the M.I of the body?

1. MR22                 

 2. 23 MR2

3. 34 MR2               

4. 25 MR2

Subtopic:  Rolling Motion |
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One circular ring and one circular disc both having the same mass and radius. The ratio of their moments of inertia about the axes passing through their centres and perpendicular to planes will be

1. 1:1

2. 2:1

3. 1:2

4. 4:1

Subtopic:  Moment of Inertia |
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A wheel of radius R rolls on the ground with a uniform velocity v. The velocity of topmost point relative to the bottommost point is

1. v

2. 2v

3. v/2

4. zero

 

Subtopic:  Rolling Motion |
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The figure shows a uniform solid block of mass M and edge lengths a, b and c. Its M.O.I. about an axis through one edge and perpendicular (as shown) to the large face of the block is 

1. M3a2+b2

2. M4a2+b2

3. 7M12a2+b2

4. M12a2+b2

Subtopic:  Moment of Inertia |
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The moment of inertia of a cube of mass m and side a about one of its edges is equal to

1. 23 ma2               

2. 43 ma2

3. 3 ma2                 

4. 83 ma2

 

Subtopic:  Moment of Inertia |
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If the net external forces acting on the system of particles is zero, then which of the following may vary ?

1. Momentum of the system

2. Velocity of centre of mass

3. Position of centre of mass

4. None of the above

Subtopic:  Center of Mass |
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A constant torque of 1000 N-m turns a wheel of moment of inertial 200 kg-m2 about an axis through its centre. Its angular velocity after 3 s is

1. 1 rad/s

2. 5 rad/s

3. 10 rad/s

4. 15 rad/s

Subtopic:  Torque |
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