please help solve, show work An inclined force, F, is applied to a block of mass
ID: 1829198 • Letter: P
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please help solve, show work
An inclined force, F, is applied to a block of mass m. What is the minimum coefficient of static friction between the block and the ramp surface such that no motion occurs? 4F/3F+5 mg 3F/4F+5 mg F/mg Ftan theta/mg Questions 8 and 9 refer to the following graph. What are the x- and y- coordinates of the centroid of the area? x- = 2.8 ; y- = 3.25 x- = 3.25 ; y- = 2.8 x- = 3.0 ; y- = 2.5 x- = 3.8 ; y- = 4.25 What is the moment of inertia of the area about x axis in cm4? 192 453 510 135Explanation / Answer
8.
y=(5*2*2.5+8*2*4+0.5*8*2*(8/3))/(5*2+8*2+0.5*8*2)
y=3.245cm
x=(5*2*1+8*2*(2+1)+0.5*8*2*(4+(2/3)))/(5*2+8*2+0.5*8*2)
x=2.804cm
c(2.8, 3.25)
9.
Ix=(2)*(5)^(3)/3+(2)*(8)^(3)/3+(2)*(8)^(3)/12
Ix=510cm^4
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