force, f1, and a frictional force, f2, on the ladder. The wall, on the other han
ID: 1566211 • Letter: F
Question
force, f1, and a frictional force, f2, on the ladder. The wall, on the other hand, is frictionless; it exerts only a normal force, f3.
a=3.8m
b=.70m
Part A
Using the dimensions given in the figure, find the magnitudes of f1, f2, and f3.
Express your answer using two significant figures.
f1 = ______kN
Par3.B
Express your answer using two significant figures.
f2 = ______ kN
Part C
Express your answer using two significant figures.
f3 =
kUsing the dimensions given in the figure, find the magnitudes of f1, f2, and f3.
Express your answer using two significant figures.
f1 = _______kN
Picture of figure down below. Please include all steps and answers. will rate thanks.
An 85 person stands on a uniform 88 gladder that is 40 asshown in the figure. The floor is rough; hence exerts both a normal frictional force, on the ladder. The wall on the other hand, is frictionless; it exerts only a normal forces Part A Using the dimensions given in the figure, fnd the magnitudes of r, and t, Express your answer using two significant figures. 21. Submit My Answers Shee UpExplanation / Answer
Part A
The net horizontal force on the ladder is zero
Fx = 0
f3 - f2 = 0
f3 = f2
The vertical force on the ladder is zero
Fy = 0
f1 - mg - Mg = 0
f1 = (m+M)*g
= (85+8.8)*9.8
= 919.24 N
Part - B & C
The net torque about the base of ladder is zero
T = 0
mgb + Mg (L/2)cos - f3*a = 0
85*9.8*0.7 + 8.8*9.8*(4/2) * cos 71.8 - f3*3.8 = 0
636.96 = f3*3.8
f3 = 167.62 N
since f 3 = f2
Therefore f2 = 167.6 N
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.