Physics-
General
Easy

Question

A particle is released from a height. At certain height its kinetic energy is three times its potential energy. The height and speed of the particle at that instant are respectively

  1. straight S over 4 comma fraction numerator 3 gS over denominator 2 end fraction
  2. straight S over 4 comma fraction numerator square root of 3 gS end root over denominator 2 end fraction
  3. S over 2 comma fraction numerator square root of 3 g S end root over denominator 2 end fraction
  4. straight S over 4 times fraction numerator square root of 3 gS end root over denominator 2 end fraction

The correct answer is: straight S over 4 times fraction numerator square root of 3 gS end root over denominator 2 end fraction


    Velocity at  when dropped from  where


    Or  (i)
    Potential energy at  (ii)

     Kinetic energy  potential energy

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