Two forces P and Q pass through a point A which is 4 m to the right of and 3 m above a moment center O. Force P is 890 N directed up to the right at 30° with the horizontal and force Q is 445 N directed up to the left at 60° with the horizontal.

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter9: Momentum And Its Conservation

Section: Chapter Questions

Problem 88A

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Question

Two forces P and Q pass through a point A which is 4 m to the right of and 3 m above a moment
center O. Force P is 890 N directed up to the right at 30° with the horizontal and force Q is 445
N directed up to the left at 60° with the horizontal.
a. Setup the moment equations.
b. Determine the moment of the resultant of these two forces with respect to O.

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