Question
An under-inflated volleyball is pumped full of air so that its radius increases by 10%. Ignoring the mass of the air inserted into the ball, what will happen to the volleyball's density?
1. The density of the volleyball will increase by approximately 25%.
2. The density of the volleyball will increase by approximately 10%.
3. The density of the volleyball will decrease by approximately 10%.
4. The density of the volleyball will decrease by approximately 17%.
5. The density of the volleyball will decrease by approximately 25%.

(e)

Solution Video