Physics
General
Easy

Question

The escape velocity of an object from the earth depends upon the mass of earth (M), its mean density ( rho ), its radius (R) and gravitational constant (G), thus the formula for escape veloctiy is

  1. V=Rsquare root of fraction numerator 8 straight pi over denominator 3 end fraction end root G P
  2. V=Msquare root of fraction numerator 8 straight pi over denominator 3 end fraction end root G R
  3. V=square root of 2 G M R end root
  4. V=square root of fraction numerator 2 G M over denominator R squared end fraction end root

The correct answer is: V=Rsquare root of fraction numerator 8 straight pi over denominator 3 end fraction end root G P

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