A window washer pulls herself upward using the bucket-pulley apparatus. The mass of the person plus the bucket is 69 kg.How hard must she pull downward to raise herself slowly at constant speed?If she increases this force by 11 percent, what will her acceleration be? There is only one pulley.

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15 years ago

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http://www.jiskha.com/display.cgi?id=1255473263

answered by MathMate

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Question

A window washer pulls herself upward using the bucket-pulley apparatus. The mass of the person plus the bucket is 69 kg.How hard must she pull downward to raise herself slowly at constant speed?If she increases this force by 11 percent, what will her acceleration be? There is only one pulley.

1 answer

See:
http://www.jiskha.com/display.cgi?id=1255473263

MathMate · Answer

See: http://www.jiskha.com/display.cgi?id=1255473263