Question 124: Properties of Matter

Question

The terminal velocity (v
t
) of the spherical rain drop depends on the radius (r) of the spherical rain drop as :

Accepted Answer

$$6\pi \eta {v_t}r = {4 \over 3}\pi {r^3}(\rho  - \sigma )g$$
$$ \Rightarrow {v_t} = C{r^2}$$ where C is a constant
or $${v_t} \propto {r^2}$$

Answer

r
1/2

Answer

r

Answer

r
2

Answer

r
3

Properties of Matter