Question

Hail forms high in the atmosphere and can be accelerated to a high speed before it reaches the ground. Estimate the terminal speed of a spherical hailstone that has a diameter of 2.8 cm. Hint: The mass of a piece of hail that has a volume of 1 cm3 is about 1 g.

Answer 1

You'll need to use:
en.wikipedia(dot)org/wiki/Drag_(physics)
to calculate at what speed the
Fz + Fdrag = 0