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Olympiad workbook
Exam
Olympiad workbook
Subject
NSEP
Chapter
Mechanical Properties of Fluids

Olympiad workbook · NSEP · Mechanical Properties of Fluids

A small sphere of mass 2.00 g is released from rest in a large...

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/s5.00 \mathrm{~cm} / \mathrm{s}. The time it takes the sphere to reach 90.0%90.0 \% of its terminal speed is approximately.

Options

  1. A3.22 ms
  2. B5.10 ms
  3. C10.2 ms
  4. D11.7 ms

Correct answer

D. 11.7 ms

Step-by-step solution

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