You are going to lift an element (mass=5.0.103 kg)over your head (2.0 m vertical displacement)
a)Calculate the work required to do this.You will lift the elephant slowly (no tossing of the elephant allowed!).if you want,you can use a pulley system.(As you saw in chapter 5, this does not change the energy required to lift the elephant but it definitely reduces the force required to do so)
b)How many doughnuts (250 food calories each) must you metabolize to supply the energy for this feat?
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