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The work done by an applied variable for...

The work done by an applied variable force `F=x+x^(3)` from x = 0 m to x = 2m, where x is displacement, is

A

6J

B

8 J

C

10 J

D

12 J

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SL ARORA-Work, Energy and power-EXERCISE
  1. A particale moves under the effect of a force F = Cs from x = 0 to x =...

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  2. A force F=(10+0.5 x) acts on a particle in the x-direction. What would...

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  3. The work done by an applied variable force F=x+x^(3) from x = 0 m to x...

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  4. The relationship between the force F and position x of body is as show...

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  5. The kinetic energy of a body of mass 2 kg and momentum of 2 Ns is

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  6. Two bodies of masses m and 4 m are moving with equal K.E. The ratio of...

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  7. Two bodies A and B having mass m and M respectively ppossess same kine...

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  8. If momentum is increased by 20% then K.E. increases by

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  9. If momentum is increased by 20% , then K.E. increase by

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  10. A body of mass 10 kg initially at rest acquires velocity 10 ms^(-1). W...

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  11. How much work must work be done by a force on 50 kg body in order to a...

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  12. A taxi without any passengers, moving on a frictionless horizontal roa...

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  13. If the potential energy between two molecules is given by U= -(A)/(r^6...

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  14. The potential energy of a particle of mass 5 kg moving in the x-y plan...

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  15. A simple pendulum hanging freely and at rest is vertical because in th...

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  16. A pendulum of length 2 m lift at P . When it reaches Q , it losses 10%...

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  17. A pendulum bob on a 2 m string is displaced 60^(@) from the vertical a...

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  18. 300J of work is done in slinding a 2 kg block up an inclined plane of ...

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  19. A body, thrown upward with some velocity reaches the maximum height of...

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  20. A uniform rope of total length l is at rest on a table with fraction f...

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