Equilibrium in Physics - Class XI

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Multiple Choice

Consider the following statements:
(a)  Change in momentum is impulse.
(b)  A body is momentarily at rest when it reverse the direction.
(c)  For stable equilibrium force has to be zero and potential energy should be minimum.
(d)  Force required to accelerate a mass in two perpendicular directions is never same.
Which of the above statements are correct?

  1. (b) and (c)
  2. (a) and (b)
  3. (a), (b) and (d)
  4. All of the above
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