At the instant = 60°, the boy's center of mass G is momentarily at rest. (Figure 1) The boy has a weight of 75 lb. Neglect his size and the mass of the seat and cords. Figure 10 ft 8 < 1 of 1 Part A Determine his speed when = 90°. Express your answer to three significant figures and include the appropriate units. ► View Available Hint(s) V = Submit Part B Value T= μA Submit Determine the tension in each of the two supporting cords of the swing when 0 = 90°. Express your answer to three significant figures and include the appropriate units. ► View Available Hint(s) μA 3 Value Units ? Units ?
At the instant = 60°, the boy's center of mass G is momentarily at rest. (Figure 1) The boy has a weight of 75 lb. Neglect his size and the mass of the seat and cords. Figure 10 ft 8 < 1 of 1 Part A Determine his speed when = 90°. Express your answer to three significant figures and include the appropriate units. ► View Available Hint(s) V = Submit Part B Value T= μA Submit Determine the tension in each of the two supporting cords of the swing when 0 = 90°. Express your answer to three significant figures and include the appropriate units. ► View Available Hint(s) μA 3 Value Units ? Units ?
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Transcribed Image Text:At the instant 0 = 60°, the boy's center of mass G is
momentarily at rest. (Figure 1) The boy has a weight of
75 lb. Neglect his size and the mass of the seat and
cords.
Figure
10 ft
8
1 of 1
Part A
Determine his speed when 0 = 90°.
Express your answer to three significant figures and include the appropriate units.
► View Available Hint(s)
V =
Submit
Part B
T =
μA
Submit
Value
S
Determine the tension in each of the two supporting cords of the swing when 0 = 90°.
Express your answer to three significant figures and include the appropriate units.
► View Available Hint(s)
Value
Units
?
Units
?
Review
Expert Solution
Step 1 of 3.
(A)
To find
The speed of the boy.
Given:
The initial angle is .
The weight of the boy is .
The radius of curvature is .
The final angle is .
FBD:
The free-body diagram is shown below.
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