Physics
General
Easy

Question

The radius of the earth is 6400 km and  g=10 space m s squared. In order that a body of 5 kg weights zero at the equator, the angular speed of the earth is =……rad/sec

  1. 1/80
  2. 1/400
  3. 1/800
  4. 1/600

The correct answer is: 1/800

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