Jawaban:
Momen di A = 17 Nm (momen di A sebesar 17 Nm searah jarum jam)
Penjelasan:
Momen gaya (torsi) = gaya x lengan tegak lurus gaya
Momen gaya terhadap titik A berarti panjang lengan diukur dari acuan A.
Perjanjian tanda:
momen searah jarum jam --> momen positif
momen berlawanan arah jarum jam --> momen negatif
Momen di A = F2 x 2 - F3 x 3 + F4 x 6 = 4 x 2 - 5 x 3 + 4 x 6 = 17 Nm (momen di A sebesar 17 Nm searah jarum jam)
F1 = 10 N dA = 0 m
F2 = 4 N dAB = 2 m
F3 = 5 N dAC = 3 m
F4 = 4 N dAD = 6 m
momen gaya = F x d
= (F1 x dA) + (F2 x dAB) - (F3 x dAC) + (F4 x dAD)
= (10 x 0) + (4 x 2) - (5 x 3) + (4 x 6)
= 0 + 8 - 15 + 24
= 17 Nm
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Jawaban:
Momen di A = 17 Nm (momen di A sebesar 17 Nm searah jarum jam)
Penjelasan:
Momen gaya (torsi) = gaya x lengan tegak lurus gaya
Momen gaya terhadap titik A berarti panjang lengan diukur dari acuan A.
Perjanjian tanda:
momen searah jarum jam --> momen positif
momen berlawanan arah jarum jam --> momen negatif
Momen di A = F2 x 2 - F3 x 3 + F4 x 6 = 4 x 2 - 5 x 3 + 4 x 6 = 17 Nm (momen di A sebesar 17 Nm searah jarum jam)
F1 = 10 N dA = 0 m
F2 = 4 N dAB = 2 m
F3 = 5 N dAC = 3 m
F4 = 4 N dAD = 6 m
momen gaya = F x d
= (F1 x dA) + (F2 x dAB) - (F3 x dAC) + (F4 x dAD)
= (10 x 0) + (4 x 2) - (5 x 3) + (4 x 6)
= 0 + 8 - 15 + 24
= 17 Nm