Question:

2.A small sphere of radius ‘r’ falls from rest in a viscous liquid. As a result, heat is produced due to viscous force. The rate of production of heat when the sphere attains its terminal velocity, is proportional to

Options :

  • a) r^3
  • b) r^2
  • c) r^5
  • d) r^4

Answer :

c) r^5

Answer Steps :

Solution :-

Step1 :-

Step2 :-

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