How hard pull downward to raise slowly at constant speed


Window washer pulls herself upward using the bucket-pulley apparatus shown in Fig. 4-48. The mass of the person plus the bucket is 61 kg.(a) How hard must she pull downward to raise herself slowly at constant speed? (b) If she increases this force by 19%, what will her acceleration be?

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Physics: How hard pull downward to raise slowly at constant speed
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