, where ρa is the density of air, Vb is the volume of the balloon, and g is the acceleration due to gravity.
A balloon filled with helium gas has an average density of ρb = 0.26 kg/m3. The density of the air is about ρa = 1.23 kg/m3. The volume of the balloon is Vb = 0.024 m3. The balloon floats upward with acceleration a.
Part (a) Express the net force F on the balloon in terms of its weight W and the buoyancy force Fb on it, assuming upward is the positive direction.
Part (b) Calculate the numerical value of the acceleration a in m/s2.
Frequently Asked Questions
What scientific concept do you need to know in order to solve this problem?
Our tutors have indicated that to solve this problem you will need to apply the Buoyancy & Buoyant Force concept. You can view video lessons to learn Buoyancy & Buoyant Force. Or if you need more Buoyancy & Buoyant Force practice, you can also practice Buoyancy & Buoyant Force practice problems.