Two bodies of masses m1 and m2 have equal kinetic energies. If p1 and p2 are their respective momentum, then ratio p1 : p2 is equal to 

(1) m1:m2

(2) m2:m1

(3) m1:m2

(4) m12:m22

Subtopic:  Linear Momentum |
 85%
From NCERT
PMT - 1985
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A light and a heavy body have equal momenta. Which one has greater K.E 

(1) The light body

(2) The heavy body

(3) The K.E. are equal

(4) Data is incomplete

Subtopic:  Linear Momentum |
 78%
From NCERT
PMT - 1985
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If the K.E. of a body is increased by 300%, its momentum will increase by 

(1) 100%

(2) 150%

(3) 300%

(4) 175%

Subtopic:  Linear Momentum |
 64%
From NCERT
PMT - 2002
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A light and a heavy body have equal kinetic energy. Which one has a greater momentum ? 

(1) The light body

(2) The heavy body

(3) Both have equal momentum

(4) It is not possible to say anything without additional information

Subtopic:  Linear Momentum |
 67%
From NCERT
PMT - 1997
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Two bodies with kinetic energies in the ratio of 4 : 1 are moving with equal linear momentum. The ratio of their masses is 

(1) 1 : 2

(2) 1 : 1

(3) 4 : 1

(4) 1 : 4

Subtopic:  Linear Momentum |
 74%
From NCERT
PMT - 1999
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A rope is wound around a hollow cylinder of mass 3 kg and radius 40cm. What is the angular acceleration of the cylinder,if the rope is pulled with a force of 30 N?

(1) 25m/s2

(2) 0.25 rad/s2

(3) 25 rad/s2

(4) 5 m/s2

Subtopic:  Torque |
 69%
From NCERT
NEET - 2017
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Two discs of same moment of inertia rotating about their regular axis passing through centre and perpendicular to the plane of disc with angular velocities ω1  and ω2. They are brought into contact face to face coinciding the axis of rotation.  The expression for loss of energy during this process is 

1. 12Iω1+ω22

2. 14Iω1-ω22

3. Iω1-ω22

4. 18Iω1-ω22 

Subtopic:  Angular Momentum |
 71%
From NCERT
NEET - 2017
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Two rotating bodies A and B of masses m and 2m with moments of inertia IA and IB(IB>IA) have equal kinetic energy of rotation. If LA and LB be their angular momenta respectively, then:
1. LA=LB2
2. LA=2LB
3. LB>LA
4. LA>LB

Subtopic:  Rotational Motion: Dynamics |
 70%
From NCERT
NEET - 2016
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A solid sphere of mass m and radius R is rotating about its diameter. A soild cyclinder of the same mass and same radius is also rotating about its geometrical axis with an angular speed twice that of the sphere. The ratio of their kinetic energies of rotation Esphere/Ecylinder  will be 

(a) 2:3

(b) 1:5

(c) 1:4

(d) 3:1

Subtopic:  Moment of Inertia |
 80%
From NCERT
NEET - 2016
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A light rod of length l has two masses m1 and m2 attached to its two ends. The moment of inertia of the system about an axis perpendicular to the rod and passing through the centre of mass is 

(1) m1m2m1+m2l2

(2)m1+m2m1m2l2l2

(3)m1+m2l2

(4) m1m2l2 

Subtopic:  Moment of Inertia |
 75%
From NCERT
NEET - 2016
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