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Force acting on a particle is (2hati+3ha...

Force acting on a particle is `(2hati+3hatj)N`. Work done by the force is zero, when a particle is moved along the line `3y+kx=5`. Here the value of k is

A

2

B

4

C

6

D

8

Text Solution

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The correct Answer is:
A
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AAKASH SERIES-WORK POWER ENERGY-EXERCISE - 2
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  4. A force of (4x^(2)+3x)N acts on a particle which displaces it from x=2...

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  7. A body moves a distance of 20 m along a striaght line under the action...

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  8. The work done in lifting a body of mass 20 kg and specific gravity 3.2...

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  9. The work done in carrying a body from A to B is 20 J and from B to C i...

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  10. A particle of mass 0.1 kg is subjected to a force which varies with d...

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  11. A uniform metre scale of mass 2kg is suspended from on end. If it is d...

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  12. Two sopheres whose radii are in the ratio 1:2 are moving with theier v...

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  13. A river of salty water is flowling with a velocity 2 m/sec. If the den...

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  14. When a spring is compresssed by 3 cm the potential energy stored in it...

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  15. If the kinetic energy of a body increases by 125% the percentage incre...

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  16. The kinetic energy of a body is s.K.. If one - fourth of its mass is r...

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  17. A body of mass 6 kg is under a force which causes displacement in it g...

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  18. A particle of mass 100 g is thrown verticaly upwards with the speed of...

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  19. A bullet of mass 10 gm hits a fixed target and penetrates through 8 cm...

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  20. A body of mass 5 kg has linear momentum of 20 kgm/s. If a constant for...

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