Physics
Mechanics
Easy

Question

The potential energy of interaction between the semi-circular ring of mass M and radius R1 and the particle of mass M placed at the centre of curvature of the semi-circular arc is:

  1. negative fraction numerator G M squared over denominator R end fraction
  2. negative fraction numerator 2 G M squared over denominator R end fraction
  3. negative fraction numerator G M squared over denominator pi R end fraction
  4. None

The correct answer is: negative fraction numerator G M squared over denominator R end fraction


    v equals negative fraction numerator G M M over denominator R end fraction equals negative fraction numerator G M squared over denominator R end fraction

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