A bomb of 12 kg explodes into two pieces of masses 4 kg and 8 kg. The velocity of 8kg mass is 6 m/sec. The kinetic energy of the other mass is 

(1) 48 J

(2) 32 J

(3) 24 J

(4) 288 J

Concept Questions :-

Linear momentum
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Two masses of 1 gm and 4 gm are moving with equal kinetic energies. The ratio of the magnitudes of their linear momenta is 

(1) 4 : 1

(2) 2:1

(3) 1 : 2

(4) 1 : 16

Concept Questions :-

Linear momentum
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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%

Concept Questions :-

Linear momentum
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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

Concept Questions :-

Linear momentum
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If the K.E. of a particle is doubled, then its momentum will 

(1) Remain unchanged

(2) Be doubled

(3) Be quadrupled

(4) Increase 2 times

Concept Questions :-

Linear momentum
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Two bodies of different masses m1 and m2 have equal momenta. Their kinetic energies E1 and E2 are in the ratio 

(1) m1:m2

(2) m1:m2

(3) m2:m1

(4) m12:m22

Concept Questions :-

Linear momentum
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Two bodies A and B having masses in the ratio of 3 : 1 possess the same kinetic energy. The ratio of their linear momenta is then 

(1) 3 : 1

(2) 9 : 1

(3) 1 : 1

(4) 3:1

Concept Questions :-

Linear momentum
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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

Concept Questions :-

Linear momentum
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If the kinetic energy of a body becomes four times of its initial value, then new momentum will

(1) Becomes twice its initial value

(2) Become three times its initial value

(3) Become four times its initial value

(4) Remains constant

Concept Questions :-

Linear momentum
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A bullet is fired from a rifle. If the rifle recoils freely, then the kinetic energy of the rifle is 

(1) Less than that of the bullet

(2) More than that of the bullet

(3) Same as that of the bullet

(4) Equal or less than that of the bullet

Concept Questions :-

Linear momentum
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