Question

A consumer upset with the latest trend of postal rate increases has decided to try to send letters by balloon even though they may not reach their intended destinations. A 72800 cm3 gas-filled balloon will provide enough lift for a 41.7 g package to be accelerated upward at a rate of 2.50 m/s2 . For these circumstances, calculate the density of the gas the consumer fills the balloon with. The acceleration due to gravity is ?=9.81 m/s2 and the density of air is ?air=1.16 kg/m3 . Neglect the mass of the balloon material and the volume of the package. Answer in kg/m^3

Answer 1