The boat has a weight of 430 lb and is held in position off the side of a ship by the spars at A and B. A man having a weight of 130 lb gets in the boat, wraps a rope around an overhead boom at C, and ties it to the end of the boat as shown. (Figure 1)

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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The boat has a weight of 430 lb and is held in position off
the side of a ship by the spars at A and B. A man having
a weight of 130 lb gets in the boat, wraps a rope around
an overhead boom at C, and ties it to the end of the boat
as shown. (Figure 1)
Figure
1 of 1
Transcribed Image Text:The boat has a weight of 430 lb and is held in position off the side of a ship by the spars at A and B. A man having a weight of 130 lb gets in the boat, wraps a rope around an overhead boom at C, and ties it to the end of the boat as shown. (Figure 1) Figure 1 of 1
If the boat is disconnected from the spars, determine the minimum number of half turns the rope must make around
the boom so that the boat can be safely lowered into the water at constant velocity. The coefficient of kinetic friction
between the rope and the boom is s = 0.15. Hint: The problem requires that the normal force between the man s
feet and the boat be as small as possible.
Express your answer as an integer.
n = 3
Correct
Part B
Previous Answers
What is the magnitude of the normal force between the boat and the man?
Express your answer to three significant figures and include the appropriate units.
Nm =
μA
Value
C
Units
Submit Previous Answers Request Answer
?
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Transcribed Image Text:If the boat is disconnected from the spars, determine the minimum number of half turns the rope must make around the boom so that the boat can be safely lowered into the water at constant velocity. The coefficient of kinetic friction between the rope and the boom is s = 0.15. Hint: The problem requires that the normal force between the man s feet and the boat be as small as possible. Express your answer as an integer. n = 3 Correct Part B Previous Answers What is the magnitude of the normal force between the boat and the man? Express your answer to three significant figures and include the appropriate units. Nm = μA Value C Units Submit Previous Answers Request Answer ? X Incorrect; Try Again; 12 attempts remaining Pearson Review Contact Us |
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