A window washer pulls herself upward using the bucket pulley apparatus shown in Fig. 4 36. (a) How..

A window washer pulls herself upward using
the bucket pulley apparatus shown in Fig. 4 36. (a) How hard must she pull
downward to raise herself slowly at constant speed? (b) If she increases this
force by 15%, what will her acceleration be? The mass of the person plus the
bucket is 72 kg.

FIGURE 4-36