Question

A 1.10 kg water balloon is shot straight up with an initial speedof 3.20 m/s. (a) What is the kinetic energy of the balloon just asit is launched? (b) How much work does the gravitational force doon the balloon during the balloon's full ascent? (c) What is thechange in the gravitational potential energy of the balloon–Earthsystem during the full ascent? (d) If the gravitational potentialenergy is taken to be zero at the launch point, what is its valuewhen the balloon reaches its maximum height? (e) If, instead, thegravitational potential energy is taken to be zero at the maximumheight, what is its value at the launch point? (f) What is themaximum height?