Asked by Fallon
A 4.92E+2 kg hot-air balloon takes off from rest at the surface of the earth. The nonconservative wind and lift forces take the balloon up, doing +9.81E+4 J of work on the balloon in the process. At what height above the surface of the earth does the balloon have a speed of 7.90 m/s?
Answers
Answered by
drwls
Do an energy balance.
Work done on balloon = (increases in KE) + (increase in gravitational potential energy)
Solve for the G.P.E change. You can use that number to compute the altitude.
It is OK to assume g is constant over the altitude range of a balloon.
Work done on balloon = (increases in KE) + (increase in gravitational potential energy)
Solve for the G.P.E change. You can use that number to compute the altitude.
It is OK to assume g is constant over the altitude range of a balloon.
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.