The 200-lb man lies against the cushion for which the coefficient of static friction is #s=0.5. The cushion rotates about the z axis. He has a constant speed v= 20 ft/s. Neglect the size of the man and take = 60°. (Figure 1) 0 Figure 8 ft 1 of 1 > Part A Determine the magnitude of the resultant normal force the cushion exerts on him. Express your answer in pounds to three significant figures. ▸ View Available Hint(s) —— ΑΣΦΑ ▾ N = Submit Part B F= ΠΕ Determine the magnitude of the resultant frictional force the cushion exerts on him. Express your answer in pounds to three significant figures. ▸ View Available Hint(s) Submit Provide Feedback vec ^ - ΑΣΦ ? vec 3 lb (2) ? lb
The 200-lb man lies against the cushion for which the coefficient of static friction is #s=0.5. The cushion rotates about the z axis. He has a constant speed v= 20 ft/s. Neglect the size of the man and take = 60°. (Figure 1) 0 Figure 8 ft 1 of 1 > Part A Determine the magnitude of the resultant normal force the cushion exerts on him. Express your answer in pounds to three significant figures. ▸ View Available Hint(s) —— ΑΣΦΑ ▾ N = Submit Part B F= ΠΕ Determine the magnitude of the resultant frictional force the cushion exerts on him. Express your answer in pounds to three significant figures. ▸ View Available Hint(s) Submit Provide Feedback vec ^ - ΑΣΦ ? vec 3 lb (2) ? lb
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:The 200-1b man lies against the cushion for which the coefficient of static friction is
μ8 = 0.5. The cushion rotates about the z axis. He has a constant speed v = 20 ft/s.
Neglect the size of the man and take 0 = 60°. (Figure 1)
Figure
Z
·b
8 ft
0
1 of 1
Part A
Determine the magnitude of the resultant normal force the cushion exerts on him.
Express your answer in pounds to three significant figures.
► View Available Hint(s)
N =
Submit
Part B
F =
|VD ΑΣΦ11
Submit
vec
Determine the magnitude of the resultant frictional force the cushion exerts on him.
Express your answer in pounds to three significant figures.
► View Available Hint(s)
IVE ΑΣΦ ↓↓↑ vec
Provide Feedback
?
lb
?
lb
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