All that matters is the constant velocity!

There is a thin string of linear mass density ρ\rho, which is going around a pulley of radius RR, with constant velocity vv.

Determine the internal tension in the string.

Details and Assumptions

  • There is no net force acting on the pulley-string system.

  • Neglect gravity.

  • Take ρ=0.25 kgm1,R=0.25 m,v=13 ms1\rho = 0.25 \text{ kgm}^{-1}, R = 0.25 \text{ m}, v = \sqrt{13} \text{ ms}^{-1}.

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