In: Physics
A
hot-air balloon is initially floating (stationary) a few metres
above the ground. The radius of...
A
hot-air balloon is initially floating (stationary) a few metres
above the ground. The radius of the spherical balloon is 6.25 m,
and the density of surrounding air is 1.29 kg m-3. "Ballast" is
weight of negligible volume that can be dropped to make the balloon
rise. How much weight would you have to drop overboard to make the
balloon rise 105 m in 15.0 s? You may assume that the density of
surrounding air remains constant.