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Potential energy U(r ) varies with posit...

Potential energy U(r ) varies with position r as shown in figure

Which of the following conclusions are correct?

A

Force is positive at Q and R

B

Force is negativ at O, X and T

C

Forces is maximum (magnitude) at O, R and X

D

Equlibrium is indicated at P, S and Z

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The correct Answer is:
A, B, C, D
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AAKASH INSTITUTE-WORK, ENERGY AND POWER-SECTION-C (OBJECTIVE TYPE QUESTIONS) (MORE THAN ONE OPTIONS ARE CORRECT)
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  2. Consider the body of mass 0.2 kg and a smooth incline of hight 3.2 m a...

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  3. A body is acted upon by a force. If work done by the force is zero, th...

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  4. A,B and C are three persons who can row their boats with speeds 10 m/s...

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  5. A body is moving on a circlar path of radius r with constant speed und...

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  6. Potential energy U(r ) varies with position r as shown in figure ...

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  7. Figure shows a plot of the potential energy as a function of x for a p...

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  8. A 5 kg body is fired vertically up with a speed of 200 m/s. Just befor...

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  9. Which of the following statements are incorrect?

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  10. The kinetic energy of a particle continuously icreses with time

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  11. A block of mass 10 kg is hanging over a smooth and light pulley throug...

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  12. The work done by the force of gravity is 100 J

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  13. In the figure show m=1kg, M = 2 kg. When smaller block (m) descends t...

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  14. A light rigid rod of length l is hinged at one end and it is free to ...

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  15. Potential energy of a system of particles is U(alpha)/(3r^(3))-(beta)/...

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  16. A block hangs freely from the end of a spring. A boy then slowly pushe...

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