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Olympiad workbookNSEPMechanical Properties of Fluids

A small sphere of mass 2.00 g is released from rest in a large cylindrical vessel filled with oil. The resistive force due to viscosity of oil acting on sphere is proportional to its velocity. Sphere approaches a terminal speed of 5.00 ~cm / s . The time it takes the sphere to reach 90.0 % of its terminal speed is approximately.

Options

A3.22 ms
B5.10 ms
C10.2 ms
D11.7 ms

Correct answer

D. 11.7 ms

Step-by-step solution

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