(Solved): (a) Calculate the work done on a 1640kg elevator car by its cable to lift it 49m at constant sp ...

(a) Calculate the work done on a $1640\mathrm{kg}$ elevator car by its cable to lift it $49\mathrm{m}$ at constant speed, assuming friction averages $80\mathrm{N}$. $W_{\text{coble }}$ (b) What is the work done on the elevator car by the gravitational force in this proce?s? (c) What is the total work done on the elevator car? number $($ rtol $=0.01$, atol $=1\mathrm{e}?08)$ k