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Solved: A window washer pulls herself upward using the
Chapter 19, Problem 29P(choose chapter or problem)
(II) 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 65 kg.
Questions & Answers
QUESTION:
(II) 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 65 kg.
ANSWER:
Step 1 of 5
The window washer pulls herself upward using the bucket pulley apparatus shown in the figure below
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The window washer pulls herself upward inside the bucket (or the rectangle shown on the picture below) using the pulley. With these, the tension on the rope is upwards since she pulls herself upwards while having a weight, having a total mass of .