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Physics 8 Online
OpenStudy (anonymous):

the pistons of 60 train engines have strokes of 200mm. the masks of the reciprocating part per cylinder is 1 kg and speed of the crank shaft is 2500 rpm. determine the mag of the primary and secondary force

OpenStudy (fretje):

wow, this question is for engine specialists, what is a reciprocating part, and its mask?

OpenStudy (anonymous):

its theory of machines

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