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In each situation of column-I, a system ...

In each situation of column-I, a system involving two bodies is given. All strings and pulleys are light and friction is absent everywhere. Initially each body of every system is at rest. Consider the system in all situation of column I from rest till any collision occurs. Then match the statements in column - I with the corresponding results in column - II

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The correct Answer is:
(A) `rarr` q; (B) `rarr` p, q; (C ) r; (D) `rarr` s
(A) Net force on block m acts in downward direction
`:.` Acceleration of centre of mass is in downward direction.
(B) Net force acts in downward as well as in horizontal direction.

`:. a_(cm)` moves both in horizontal & vertical direction.
(C ) As the mass of monkey & block is same both moves upward.
`:.` Centre of mass moves upward
(D) Centre of mass of the system does not moves
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ALLEN -CENTRE OF MASS-EXERCISE-III
  1. A particle of mass 1 kg has velocity vec(v)(1) = (2t)hat(i) and anothe...

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  2. Two blocks A and B of mass m and 2m respectively are connected by a ma...

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  3. In each situation of column-I, a system involving two bodies is given....

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  4. If net force on a system of particles is zero. Then {:(,"Column I",,...

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  5. {:(,"Column I",,"Column II",),((A),"Elastic collision",(p),KE " is con...

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  6. Assertion : In case of bullet fired from gun, the ratio of kinetic e...

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  7. Statement -1 : When a girl jumps from a boat, the boat slightly moves ...

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  8. Statement I: In a two-body collision, the momenta of the particles are...

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  9. Statement-1 : The centre of mass and centre of gravity of a body are t...

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  10. Statement-1 : A particle of mass m strikes a smooth wedge of mass M as...

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  11. Statement-1 : The coefficient of restitution is less than one for all ...

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  12. Statement I: No external force acts on a system of two spheres which u...

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  13. Statement I: If a sphere of mass mmoving with speed u undergoes a perf...

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  14. Statement I: If a ball projected up obliquely from the ground breaks u...

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  15. Comprehension # 1 If net force on a system in a particular direction...

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  16. Comprehension # 1 If net force on a system in a particular direction...

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  17. Comprehension # 1 If net force on a system in a particular direction...

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  18. Comprehension # 1 If net force on a system in a particular direction...

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  19. Comprehension # 2 When two bodies collide normally they exert equal ...

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  20. Comprehension # 2 When two bodies collide normally they exert equal ...

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