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The kinetic energy K of a particle movin...

The kinetic energy K of a particle moving along x - axis varies with its position (x) as shown in figure

The magnitude of force acting on particle at x = 9 mis

A

Zero

B

5 N

C

20 Ns

D

7.5 N

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The correct Answer is:
B
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AAKASH INSTITUTE-WORK, ENERGY AND POWER-Assignment (SECTION - B)
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  2. A particle is moving in a circular path of radius r under the action o...

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  3. The kinetic energy K of a particle moving along x - axis varies with i...

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  4. A block of mass sqrt2 kg is released from the top of an inclined smoot...

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  5. In net force on a system is zero then

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  6. Internal forces acting within a system of particles can alter

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  7. In the figure shown, a particle is released from the position A on a s...

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  8. A particle of mass m is projected at an angle alpha to the horizontal ...

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  9. A shell at rest on a smootyh horizontal surface explodes into two frag...

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  10. A particle is moving along a vertical circle of radius R. At P, what w...

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  11. A particle of mass m attached to the end of string of length l is rele...

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  12. If F = 2x^(2) - 3x -2, then choose correct option:-

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  13. When a conservation force does positive work on a body, then the

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  14. The variation of force F acting on a body moving along x - axis varies...

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  15. A particle located in one dimensional potential field has potential en...

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  16. The force required to row a boat at constant velocity is proportional ...

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  17. A body of mass m is projected from ground with speed u at an angle the...

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  18. A particle of mass m moves in a circular path of radius r, under the a...

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  19. The rate of doing work by force acting on a particle moving along x-ax...

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  20. A small ball of mass m moving with speed v ( gt sqrt(2gL)) undergoes ...

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