A superhero attempted to move a huge odd-shaped boulder shown. The boulder can be thought of as a composite volume with the masses mA = 7300 kg and mB = 3240 kg. Let µs = 0.24 and µk = 0.35 be the coefficients of sliding and non-sliding friction between the boulder and the ground, respectively. Answer the following questions assuming that the resultant force P from the superhero hits the boulder at a height of h = 1.5 m above the ground and an angle from the horizontal: 2. If the angle α = 0°, which of the following equilibrium equations solves for the unknown value of the normal? A. ∑Fx = 0 B. ∑Fy = 0 C. ∑ME = 0
A superhero attempted to move a huge odd-shaped boulder shown. The boulder can be thought of as a composite volume with the masses mA = 7300 kg and mB = 3240 kg. Let µs = 0.24 and µk = 0.35 be the coefficients of sliding and non-sliding friction between the boulder and the ground, respectively. Answer the following questions assuming that the resultant force P from the superhero hits the boulder at a height of h = 1.5 m above the ground and an angle from the horizontal: 2. If the angle α = 0°, which of the following equilibrium equations solves for the unknown value of the normal? A. ∑Fx = 0 B. ∑Fy = 0 C. ∑ME = 0
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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A superhero attempted to move a huge odd-shaped boulder shown. The boulder can be thought of as a composite volume with the masses mA = 7300 kg and mB = 3240 kg. Let µs = 0.24 and µk = 0.35 be the coefficients of sliding and non-sliding friction between the boulder and the ground, respectively. Answer the following questions assuming that the resultant force P from the superhero hits the boulder at a height of h = 1.5 m above the ground and an angle from the horizontal:
2. If the angle α = 0°, which of the following equilibrium equations solves for the unknown value of the normal?
A. ∑Fx = 0
B. ∑Fy = 0
C. ∑ME = 0
Transcribed Image Text:1.7m
0.75m
a
P
D
1.5m
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