Question: A window washer pulls herself upward using the bucket-pulley apparatus shown in Fig. 4-48. (a) How hard must she pull downward to raise herself slowly

A window washer pulls herself upward using the bucket-pulley apparatus shown in Fig. 4-48.
(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.

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