A 600-kg weather ballon is designed to lift a 4000-kg package. What volume should the ballon have after being inflated with helium at standard temperature and pressure so the total load can be lifted up?

The problem asks for volume. Take it a step further...
assume the ballon is spherical, and find it's radius.

3 answers

Ok so I know how to find the volume. I just need to know how to get the radius.
Since V = (4/3)*pi*R^3 (for a sphere),

R = cube root of [3V/(4*pi)]
Thank you! Took me a little whilez to figure it out but I got it.