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For a particle moving under the action o...

For a particle moving under the action of a variable force, kinetic energy (k) varsus position (x) graph is given, then

A

At A, particle is decelerating

B

At B, particle is decelerating

C

At C, particle has maxijmum velocity

D

At D, particle has maximum acceleration

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The correct Answer is:
D
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AAKASH INSTITUTE ENGLISH-WORK, ENERGY AND POWER-SECTION-A (OBJECTIVE TYPE QUESTIONS (ONE OPTIONISCORRECT)
  1. Potential energy is defined

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  2. An unloaded bus can be stopped by applying brakes on straight road aft...

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  3. For a particle moving under the action of a variable force, kinetic en...

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  4. A spring with spring constaant k when compressed by 1 cm the PE stored...

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  5. Two springs have spring constants k(1)and k(2) (k(1)nek(2)). Both are ...

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  6. KE of a body is increased by 44%. What is the percent increse in the m...

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  7. When momentum of a body increases by 200% its KE increases by

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  8. A buttle weighting 10 g and moving with a velocity 800 ms^(-1) strikes...

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  9. which a U^(238) nucleus original at rest , decay by emitting an alpha ...

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  10. An engine develops 20 kW of power. How much time will it take to lift ...

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  11. The power of water pump is 4 kW. If g=10 ms^(-2), the amount of water ...

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  12. A particle moves with the velocity vecv=(5hati+2hatj-hatk)ms^(-1) unde...

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  13. A particle moves along X-axis from x=0 to x=1 m under the influence of...

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  14. A body constrained to move in z direction is subjected to a force give...

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  15. The KE acquired by a mass m in travelling a certain distance d, starti...

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  16. Momentum of a body increae by 0.02% percent increase in KE is

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  17. A body loses half of its velocity on penetrating 6 cm in wooden block....

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  18. The PE of a 2 kg particle, free to move along x-axis is given by V(x)=...

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  19. If 250 J of work is done in sliding a 5 kg block up an inclined plane ...

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  20. An object of mass 80 kg moving with velocity 2ms^(-1) hit by collides ...

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