Compute the combined moment of the two 75-lb forces about (a) point O and (b) point A. The moment is positive if counterclockwise, negative if clockwise. Assume a = 7.2 in., b -3.4 in., F = 75 lb. F 1 F

Compute the combined moment of the two 75-lb forces about (a) point O and (b) point A. The moment is positive if counterclockwise, negative if clockwise. Assume a = 7.2 in., b -3.4 in., F = 75 lb. F 1 F

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter6: Beams And Cables

Section: Chapter Questions

Problem 6.6P: Find the internal force systems acting on sections 1 and 2.

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Question

Compute the combined moment of the two 75-lb forces about (a) point O and (b) point A. The moment is positive if counterclockwise,
negative if clockwise.
Assume a = 7.2 in., b = 3.4 in., F = 75 lb.
Answers:
(a) Mo=
(b) MA= i
y
lb-in.
lb-in.

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