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Daily Archives: December 2, 2011


Are Black Holes really Black?

Praticksha asked -” I’ve read smwhere dat black holes are actly not black.. Is it true or not nd if yes then how?”

A Few Problems from Kinematics

  1. A body falling freely from rest has velocity v after it falls a height h . Calculate the distance it should fall down further for its velocity to become double
  2. A particle in uniform acceleration in a straight line has a speed of v m/s at position x meter is given by √(25-16x). What is the acceleration of the particle

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