-AB cos(T/3) + AC + Ax = 0 -AB sin(7/3) + Ay = 0 AB cos(7/3) – BC cos (T/3)- BD = 0 AB sin(T/3) + BC sin(t/3) = W/2 -AC + BC cos(Tt/3) – CD cos(T/3) + CE = 0 -BC sin(t/3) – CD sin(t/3) = 0 BD + CD cos(t/3) - DE cos(t/3) = 0 CD sin(r/3) +DE sin(t/3) = W/2 DE cos(T/3) – CE = 0 -DE sin(t/3) + Ey = 0 where AB, AC, BC, etc. are the axial forces carried by the members, W is the weight of the fuel-filled rocket, Ax and Ay are the x- and y- components of the reaction force at joint A, and Ey is the reaction force at joint E, and angles are in units of radians. The axial stress in each member of the truss will be o (axial force)/(cross-sectional area).

-AB cos(T/3) + AC + Ax = 0 -AB sin(7/3) + Ay = 0 AB cos(7/3) – BC cos (T/3)- BD = 0 AB sin(T/3) + BC sin(t/3) = W/2 -AC + BC cos(Tt/3) – CD cos(T/3) + CE = 0 -BC sin(t/3) – CD sin(t/3) = 0 BD + CD cos(t/3) - DE cos(t/3) = 0 CD sin(r/3) +DE sin(t/3) = W/2 DE cos(T/3) – CE = 0 -DE sin(t/3) + Ey = 0 where AB, AC, BC, etc. are the axial forces carried by the members, W is the weight of the fuel-filled rocket, Ax and Ay are the x- and y- components of the reaction force at joint A, and Ey is the reaction force at joint E, and angles are in units of radians. The axial stress in each member of the truss will be o (axial force)/(cross-sectional area).

Understanding Motor Controls

4th Edition

ISBN:9781337798686

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter53: The 555 Timer

Section: Chapter Questions

Problem 2RQ

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