Question

The viscous drag on a spherical body having radius r moving with speed V is proportional to

Answer 1

The formulae for viscous force is

F(viscous)= -6×pie(constant)×neta(a constant)×r×v

Therefore it is proportional to both velocity of the object and radius of the object.

Answer 2

Answer:

Concept :

To gain a better grasp, we must first comprehend the definition of viscosity. The resistance of a fluid (liquid or gas) to a change in shape or movement of adjacent sections relative to one another is called viscosity. The resistance to flow is referred to as "viscosity." The reciprocal of viscosity, which is a measure of flow ease, is defined as fluidity.

Given :

On a spherical body of radius r travelling at speed V, the viscous drag is proportional to

Find :

To find the proportional answer

Answer :

Velocity (V)

• To answer this question, we must first understand the formula for calculating viscous drag.
• The viscous drag formula is a relationship between viscosity, radius, and velocity.
• F=6RV denotes the viscous drag on a spherical body.
• Here, is the viscosity coefficient, R is the sphere's radius, and V is its velocity.
• The kinematic viscosity is more useful in some applications than the absolute, or dynamic, viscosity.

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