At what height above the surface of the earth

Reference no: EM1392917

Q. A 4.3 x10^2 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 +9.7 x10^4 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-m/s?

Reference no: EM1392917

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