Question: Section 4 . 2 : Problem 4 - 1 : A railroad crossing gate is made up of an arm and a counterweight. The arm

Section 4.2:
Problem 4-1: A railroad crossing gate is made up of an arm and a counterweight. The arm has a mass of 50 kg , centered at Ga. Likewise, the counterweight has a mass of 125 kg centered at GW. Determine the magnitude and directional sense of the resultant moment produced by the weights of these two elements about the base at B.
(Ans: 613N-mCW)
Section 4 . 2 : Problem 4 - 1 : A railroad

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