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When a body moves with a constant speed ...

When a body moves with a constant speed along a circle

A

no work is done on it

B

no acceleration is produced in it

C

its velocity remains constant

D

no force acts on it.

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SL ARORA-Work, Energy and power-EXERCISE
  1. Assertion : A work done in moving a body over a closed loop is zero ...

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  2. A body moves a distance of 10 m along a straight line under an action ...

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  3. When a body moves with a constant speed along a circle

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  4. A body constrained to move in y direction is subjected to a force give...

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  5. A uniform force of (3 hati + hatj) newton acts on a partical of mass 2...

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  6. If oversetrightarrowF=(60hati+15hatj-3hatk)N and oversetrightarrowv=(2...

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  7. A position dependent force F=7-2x+3x^(2) acts on a small body of mass ...

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  8. A force acts on a 3.0 gm particle in such a way that the position of t...

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  9. A body of mass 3 kg is under a constant force which causes a displacem...

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  10. Force F on a particle moving in a straight line varies with distance d...

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  11. A bomb of mass 30 kg at rest explodes in to two pieces of masses 18 kg...

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  12. A mass of 1 kg is thrown up with a velocity of 100 m/s. After 5 second...

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  13. A ball of mass2 kg and another of mass 4 kg are dropped together from ...

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  14. A stationary partical explodes into two partical of a masses m(1) and ...

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  15. A particle of mass m1 is moving with a velocity v(1) and another parti...

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  16. Two bodies of masses m and 4 m are moving with equal kinetic energies....

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  17. Two bodies with kinetix energies in the ratio of 4 : 1 are moving with...

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  18. The velocity acquired by a mass m in travelling a certain distance d s...

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  19. If kinetic energy of a body is increased by 300%, then percentage chan...

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  20. A particle is projected at 60(@) to the horizontal with a kinetic ene...

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