Physics
General
Easy

Question

The escape velocity of a body on the surface of the earth is 11.2km/sec. If the mass of the earth is increases to twice its present value and the radius of the earth becomes half, the escape velocity becomes...kms-1

  1. 5.6
  2. 11.2
  3. 22.4
  4. 494.8

The correct answer is: 22.4

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