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V–t graph is obtained as shown in the fi...

V–t graph is obtained as shown in the figure. The work done by the force is represented by the path–

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MOTION-WORK, POWER & ENERGY -Exercise - 2
  1. A force vecF=(3x^(2)+2x-7)N acts on a 2 kg body as a result of which t...

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  2. A force F=Kx^(2) acts on a particle at an angle of 60° with the x–axis...

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  3. V–t graph is obtained as shown in the figure. The work done by the for...

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  4. 300J of work is done in slinding a 2 kg block up an inclined plane of ...

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  5. Which of the following statements is true for work done by conservativ...

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  6. The relation between conservative force and potential energy U is give...

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  7. A constant force F is applied to a body of mass m moving with initial ...

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  8. The graph between potential energy U and displacement X in the state o...

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  9. A 10 kg satellite completes one revolution around the earth at a heigh...

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  10. A particle moves in a potential region given by U=8x^(2)-4x+400J. Its ...

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  11. The kinetic energy K of a particle moving along x axis varies with its...

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  12. The kinetic energy of a particle moving along a circle of radius R dep...

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  13. A 242 × 10^(4)kg freight car moving along a horizontal rail road spur ...

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  14. A spring is held compressed so that its stored energy is 2.4 J. Its en...

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  15. The system is released from rest with both the springs in unstretched ...

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  16. In the figure shown, the system is released from rest with both the sp...

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  17. A block of mass m is stationary with respect to a rough wedge as shown...

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  18. The block of mass m is released when the spring was in its natrual len...

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  19. A labour lifts 100 stones to a height of 6m in two minutes. If mass of...

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  20. The force required to row a boat over the sea is proportional to the s...

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