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The pulley arrangements of Figs. (a) and...

The pulley arrangements of Figs. (a) and (b) are identical. The mass of the rope is negligible. In (a) the mass m is lifted up by attaching a mass 2m to the other end of the rope. In (b), m is lifted up by pulling the other end of the rope with a constant downward force `F=2mg`. The acceleration of m is the same in both cases

A

zero

B

more than that in case II

C

less than that in case II

D

equal to that in case II

Text Solution

Verified by Experts

The correct Answer is:
C
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MOTION-NLM & FRICTION-EXERCIS-1
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  2. In the given figure, pulleys and strings are massless. For equilibrium...

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  3. The pulley arrangements of Figs. (a) and (b) are identical. The mass o...

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  4. A particle of small m is joined to a very heavy body by a light string...

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  5. Three equal weight A,B and C of mass 2kg each are hanging on a string ...

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  6. Two masses of 1kg and 5kg are attached to the ends of a massless strin...

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  7. A system consists of two cubes of mass m(1), and m(2) respectively con...

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  8. Consider a system of two massless idealsprings and a block which is in...

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  9. A lift is going up. The total mass of the lift and the passengers is 1...

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  10. Figure shows a man of mass 50kg standing on a light weighing machine k...

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  11. With what acceleration 'a' should the box of figure moving up so that ...

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  12. A triangular block of mass M with angle 30º, 60º, 90º rests with its 3...

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  13. Which of the following statement is absolutely correct about mass -

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  14. In the arrangement shown, the pulleys are fixed and ideal, the strings...

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  15. A small block of mass m rests on a smooth wedge of angle theta. With w...

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  16. Find out the reading of the weighing machine in the following cases.

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  17. The maximum value of the block m(2) for which the system will remain i...

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  18. If the coefficient of friction between A and B is mu, the maximum acce...

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  19. If the coefficient of friction between an insect and bowl is mu and th...

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  20. A block is placed on a rough floor and a horizontal force F is applie...

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