A window washer pulls herself upward using the bucket-pulley

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SUMMARY

The discussion centers on a physics problem involving a window washer using a bucket-pulley system with a combined mass of 68 kg. To maintain a constant speed, the washer must exert a downward force of 330 N. When this force is increased by 16%, the resulting acceleration is calculated to be 1.6 m/s². The tension and gravitational forces are balanced, and the acceleration is derived from the net force acting on the system.

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Anant Joshi
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Homework Statement


A window washer pulls herself upward using the bucket-pulley apparatus . The mass of the person plus the bucket is 68 kg . a)how much force must she push downward to raise herself at a constant speed?
b)If she increases this force by 16 % , what will her acceleration be?
>>so I was able to find the first part, and rounded, the force was 330N
the answer for part b is 1.6 m/s^2. I know the force of tension and gravity cancel each other out.
i also know how to find part b, >> (330N)(2)=(68kg)(a), and acceleration is 1.6 m/s^2
what i do not understand is why do I have to multiply the 330 by 2 instead of leaving it as 330.
 
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For part b, I assume you meant (330N)(2)(16%) etc.
But to answer your question, consider the system consisting of the washer and bucket. What forces act on it?
 

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