posted by Jane .
A balloon carrying a basket is descendign with a constant acceleration of g/3. the total mass of the basket and contents is mB.you see water below and decide you need to throuw out some mass to allow the basket to rise and not hit the water. how much mass should you throw out to allow the ballon-basket to rise witha an acceleration of g/2? the only force to consider other than the weight is the upward directed buoyancy force, fB due to the hot air.