A plate in the shape of a parallelogram is acted upon by two couples. Determine the following: a) the moment of the couple formed by the two 84 N forces, b) the perpendicular distance between the 48 N forces if the resultant of the two couples is zero, and c) the value of a if the resultant couple is 2.88 N-m clockwise and d is 42 cm. 84 NC 48 N A D α 84 N d B 18 N 16 cm
A plate in the shape of a parallelogram is acted upon by two couples. Determine the following: a) the moment of the couple formed by the two 84 N forces, b) the perpendicular distance between the 48 N forces if the resultant of the two couples is zero, and c) the value of a if the resultant couple is 2.88 N-m clockwise and d is 42 cm. 84 NC 48 N A D α 84 N d B 18 N 16 cm
Physics for Scientists and Engineers, Technology Update (No access codes included)
9th Edition
ISBN:9781305116399
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter12: Static Equilibrium And Elasticity
Section: Chapter Questions
Problem 12.3CQ: (a) Give an example in which the net force acting on an object is zero and yet the net torque is...
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For part B (answer is 0.28m) can you draw where the perpendicular distance between 48N forces is? And also can you show me the equation for part B?
Because for part A (answer is 13.44N) I used M = Fx • Dy
Fx is 84 kN and Dy is 16cm.
I’m confused that the answer key for part B uses M = Fy • Dx
M= 13.44 N•M
Fy= 48 N
I’m probably misunderstanding Dx at part B. So can you fully explain this question. Thank you!!!
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For part C, why is d in "M2 = fd" equal to 42sin(a)?
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