Exercicios RM2
yC =
= + . = + . = 0 (Simetria)
yC = →
yC = →
yC = →
yC = →
yC = →
= x → = x → = x → = x →
= → = + → = + + → = + + + →
= → = → = → = →
= → = → = → = →
a)
= 70 = 40
yC = → yC =
= x → = 40 x 70 → = 2800 = → = → = 35 yC = → yC = → yC = 35
= + . → = + .
= → = → = 1143,33 = x → = 40 x 70 → = 2800 = → = → = 0 = + . → = 1143,33 + 2800 . 0 → = 1143,33
= + . → = + . = → = → = 373333,33 = x → = 40 x 70 → = 2800 = 0 (Simetria) = + . → = 373333,33 + 2800 . 0 → = 373333,33
= 0 (Simetria)
b)
= 50 = 15 = 15 = 50
yC = → yC =
= x → = 15 x 50 → = 750 = x → = 50 x 15 → = 750 = → = → = 25 = + → = 50 + → = 57,5 yC = → yC = → yC = 41,25
= + . → = ( + . + ( + .
= → = → = 156250 = → = → = 14062,5 = x → = 15 x 50 → = 750 = x → = 50 x 15 → = 750 = → = → = 264,06 = → = → = 264,06 = ( + . + ( + . → = ( + . + ( + . = 566402,5
= + . → = ( + . ) + ( + . ) = → = → = 14062,5 = → = → = 156250 = x → = 15 x 50 → = 750 = x → = 50 x 15 → = 750 = = 0 (Simetria) = ( + . ) + ( + . ) → = ( + . ) + ( + . )→ = 170312,5
= 0 (Simetria)
c) = 20 = 60 = 90 = 20 = 20 = 60
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yC = → yC =
= x → = 60 x 20 → = 1200 = x → = 20 x 90 → = 1800 = x → = 60 x 20 → = 1200 = → = → = 10 = + → = 20 + → = 65 = + + → = + + → = 120 yC = → yC = → yC = 65
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= + . → = ( + . + ( + . + ( + .
= →