Question

What does terminal velocity mean ? please help

Answer 1

Terminal velocity means steady speed achieved.

Answer 2

`\underline{ \bf{\underline{\large{Terminal \: Velocity}}}}`

• The maximum constant velocity acquired by a body while falling through a viscous medium is called it's terminal velocity.
• It is usually denoted by
  `\sf V_T`.
• It is directly proportional to the square of the radius of the body (a²) & the difference of the densities of the body and the fluid
  `\sf (\rho - \sigma)`.
• It is inversely proportional to the viscosity of the medium
  `\sf (\eta)`.
• Formula of Terminal Velocity:
  `\boxed{ \bf{V_T = (2)/(9) \frac{ {a}^(2) }{ \eta} ( \rho - \sigma)g}}`