What length of rope must the operator pul and what is the ideal mechanical advantage (MA) of the pulley system if the 15 N load is to be raised 1 m? (Assume the rope is sufficiently long to accommodate movement of the load and that all pulleys are frictionless.)
1.0 m, MA-3
А
B
3.0 m, MA 3
С
10 m, MA-1/3
D
30 m, MA=1/3