Physics, 04.01.2022 02:50, carolyvillanueva

a 4.90x10^2kg hot-air ballon takes off from rest at the surface of the earth. the nonconservative wind and lift forces the balloon up, doing +9.70x10^4j of work on the ballon in the balloon. at what height above the earth does the balloon have a speed of 7.40m/s?

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a 4.90x10^2kg hot-air ballon takes off from rest at the surface of the earth. the nonconservative wi...