Question

A ball falls from a height h in a fluid which offers a resistance f = -kv. Find the terminal velocity if mass of the ball is m

• A. $\frac{mg}{k}$
• B. $\sqrt{\frac{mgh}{k}}$
• C. $\frac{mg - B}{k}$
• D. None of these

Answer 1

Answer: (A)

$\frac{mg}{k}$

Answer 2

mg = kv or v = mg/k