Answer:6060 foot-pounds
Step-by-step explanation:
Given
Weight of cable(w')=0.6 pound per foot
depth of well=60 foot
weight of wrench=7 Pound
Now work done in raising monkey with wrench
foot-pounds
Now work done in raising rope
robot rises by climbing up the cable with one end of the cable still attached thus robot support half the weight of cable so work done


foot-pounds
foot-pounds
Answer:
B
Step-by-step explanation:
Recall that 
So now

Answer:
C. 
D. 
Step-by-step explanation:
C. 



D. 



