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A light inextensible string that gas ove...

A light inextensible string that gas over a smoth fixed polley as shown in the figure connect two blocks of mases it `0.36` kg and `0.72` kg Taking `g = 10 ms^(-2)` , find the work done by the string on the block of mass ` 0.36` kg doring the first second after the system is refosed from rest ,

A

6 Joule

B

5 Joule

C

8 Joule

D

2 joule

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The correct Answer is:
A
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CP SINGH-WORK, ENERGY AND POWER-EXERCISES
  1. A cord is used to lower vertically a block of mass M, a distance d at ...

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  2. The two blocks in an Atwood machine have masses 2.0 kg and 3.0 kg. Fin...

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  3. A light inextensible string that gas over a smoth fixed polley as show...

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  4. If W(1) ,W(2) and W(3) represent the work done in moving a particle f...

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  5. A Force F acting on an object varies with distance x as shown in the h...

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  6. Work done from d=0m to d=3m

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  7. A particle moves along the X-axis from x=0 to x=5m under the influence...

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  8. A force act on a 30 gm particle in such a way that the position of the...

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  9. The displacement x of a particle of mass m kg moving in one dimension,...

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  10. A particle of mass m moves on a straight line with its velocity varyin...

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  11. A particle is moving along the x-axis and force acting on it is given ...

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  12. A block of mass m at rest is acted upon by a force F for a time t. The...

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  13. According to the work energy theorem, the work done by the net force o...

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  14. A particle of mass 0.1 kg is subjected to a force which varies with di...

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  15. A block of mass 2 kg is resting on a smooth surface. At what angle a ...

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  16. Two blocks A and B have masses m and 4m, respectively. Each one is act...

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  17. A force acting on particle is given by vecF=(3x^2hati+4yhatj)N. The ch...

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  18. The K.E. acquired by a mass m in travelling a certain distance d, star...

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  19. If the force acting on a body is inversely proportional to its speed, ...

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  20. If the kinetic energy of body is directly proportional to time t, the ...

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