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NEST2022PhysicsMechanical Properties of Fluids

A cylinder (density =5.0 10^3 ~kg ~m ⁻³ ) of height h=2.0 ~m is vertically released from rest in a water-filled tank (density of water =1.0 10^3 ~kg ~m ⁻³ ) when the top surface A just touches the water as shown in the figure. Assume that the cylinder remains exactly vertical while it is sinking. The velocity of the cylinder at the instance when its top surface (B) just touches the water is

Options

  1. A5.5 ~m ~s ⁻¹
  2. B6 ~m ~s ⁻¹
  3. C5 ~m ~s ⁻¹
  4. D6.5 ~m ~s ⁻¹

Correct answer

B. 6 ~m ~s ⁻¹

Step-by-step solution

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