Locate the centroid of the following figures.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
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3. Determine the magnitude of the counterweight W to cause the block to slide down the incline.
Coefficient of friction between the block and inclined surface is 0.30. The pulley is frictionless.
100 kg
motion
motion
W
20°
Transcribed Image Text:3. Determine the magnitude of the counterweight W to cause the block to slide down the incline. Coefficient of friction between the block and inclined surface is 0.30. The pulley is frictionless. 100 kg motion motion W 20°
1. Locate the centroid of the following figures.
90 mm
: y
a)
b)
90
ty
4 in
mm
3 in
120
X
+
2 in
2 in
2 in
A = A1 - A2
Ax = A1 x1 - A2 x2
А у%3DA1 y1 - A2 у2
A = A1 - A2
Ax = A1 x1 - A2 x2
А у 3DA1 y1 - А2 у2
2. Compute for the moment of inertia about xo and yo of the following figures.
а)
b)
y
100 mm
100 mm
75 mm
y
25
mm
120 mm
75 mm
50 mm
180 mm
| = |1 - 12
|= 1 + 12
Transcribed Image Text:1. Locate the centroid of the following figures. 90 mm : y a) b) 90 ty 4 in mm 3 in 120 X + 2 in 2 in 2 in A = A1 - A2 Ax = A1 x1 - A2 x2 А у%3DA1 y1 - A2 у2 A = A1 - A2 Ax = A1 x1 - A2 x2 А у 3DA1 y1 - А2 у2 2. Compute for the moment of inertia about xo and yo of the following figures. а) b) y 100 mm 100 mm 75 mm y 25 mm 120 mm 75 mm 50 mm 180 mm | = |1 - 12 |= 1 + 12
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