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two-bodies-a-and-b-have-masses-m-and-m-respectively-where-m-m-and



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Q1.
Two bodies A and B having masses 2 kg and 4 kg respectively are separated by 2 m. Where should a body of mass 1 kg be placed so that the gravitational force on this body due to A and B is zero?
  1. 8.3m
  2. 0.83m
  3. 3.8m
  4. 0.38m
Q2.
Two bodies A and B having masses m and 4m respectively are moving with equal linear momentum. The ratio of kinetic energies between A and B is _________.

  1. 4 : 1
  2. 1 : 1
  3. 1 : 4
  4. 1 : 2
Q3.

If A and B are two bodies of masses 20kg and 40kg respectively, then:


  1. They will not have any inertia.

  2. B has more inertia than A.

  3. A and B have same inertia.

  4. A has more inertia than B.

Q4.
Two bodies A and B of masses 1 and 4 kg respectively have equal linear momentum. The ratio of their kinetic energies is?
  1. 1:4
  2. 1:2
  3. 4:1
  4. 1:16
Q5.
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 moment a respectively, then:

  1. LA=LB2
  2. LA=2LB
  3. LB>LA
  4. LA>LB

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