A window washer pulls herself upward using the bucket-pulley apparatus shown in (Eigure 1). The mass of the person plus the bucket is 70 kg. gure 1 of 1 > Y How hard must she pull downward to raise herself slowly at constant speed? Express your answer to two significant figures and include the appropriate units. F = 690 Submit Part B 3 X Incorrect; Try Again Previous Answers Request Answer N μA If she increases this force by 12 %, what will her acceleration be? Express your answer to two significant figures and include the appropriate units. ? a ?

University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter5: Newton's Law Of Motion
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Problem 89AP: In building a house, carpenters use nails from a large box. The box is suspended from a spring twice...
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A window washer pulls herself upward using the bucket-pulley
apparatus shown in (Figure 1). The mass of the person plus the
bucket is 70 kg
Figure
1 of 1
How hard must she pull downward to raise herself slowly at constant speed?
Express your answer to two significant figures and include the appropriate units.
F = 690
Submit
O
Part B
X Incorrect; Try Again
μà 1
a = 11
Previous Answers Request Answer
Provide Feedback
N
If she increases this force by 12 %, what will her acceleration be?
Express your answer to two significant figures and include the appropriate units.
μÁ 1
X Incorrect; Try Again
m
BA
S
2
?
Submit Previous Answers Request Answer
?
Transcribed Image Text:A window washer pulls herself upward using the bucket-pulley apparatus shown in (Figure 1). The mass of the person plus the bucket is 70 kg Figure 1 of 1 How hard must she pull downward to raise herself slowly at constant speed? Express your answer to two significant figures and include the appropriate units. F = 690 Submit O Part B X Incorrect; Try Again μà 1 a = 11 Previous Answers Request Answer Provide Feedback N If she increases this force by 12 %, what will her acceleration be? Express your answer to two significant figures and include the appropriate units. μÁ 1 X Incorrect; Try Again m BA S 2 ? Submit Previous Answers Request Answer ?
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