For the shape shown above, which moment of inertia would be a larger value, Ix or ly? a) ly b) 1x c) Neither, they would
-
answerhappygod
- Site Admin
- Posts: 899604
- Joined: Mon Aug 02, 2021 8:13 am
For the shape shown above, which moment of inertia would be a larger value, Ix or ly? a) ly b) 1x c) Neither, they would
For the shape shown above, which moment of inertia would be a larger value, Ix or ly? a) ly b) 1x c) Neither, they would be equal Cartesian Vectors Magnitude: F=Fxi+Fyj+F2k^F=Fx2+Fy2+Fz2 Position Vector: rAB=(xB−xA)f^+(yR−yA)j^+(zB−xA)k^ Unit vector: QF=pf=rrxi+Fr2j+rrLk =cosαi^+cosβj^+cosγk^∘ To convert a scalar force into Cartesian form: F=Fn^=F(rr) Dot Product: A⋅B=ABcosθ=AxBx+AyBy+AzBz To find thesingle between 2 veckes: θ=cos−1(ABAzθx+AyBy+AzHz) To find the projoction of a vactor along a lind: F⋅Δine=Rxux+Fyuy+Rguz Moments To find the moment about a point (Cross Product - unswer is a veclor): M˙=r×F=∣∣i^rzFxi^ryFyk^rzF2∣∣=(ryFz−r2Fy)(−(rxFz−r2Fx))+(rxFy−ryFz)k 'To find the monent ahout a line or axis ("Triplo Scalar Itoduct" answer is a scalar): M=tuiav−ri×F2=∣∣uxrxFxuyryFyuzrxFz∣∣=(ryFx−ryFy)ux−(rxFx−rzFx)uy+(rxFy−ryFx)ud lo put this in Cartokian form: M=Mθilas Simplificution of a Porce und Couple Systam: Pk=∑F and (MN)α=ΣM+ΣMα Systems of Forces and Minents Fequilibrica of a Particle, ∑P∗=0;∑Py=0;∑Rr=0 Eujulibrium of a 2D Rigid Bixly, ∑Rx=0;ΣFy=0;ΣMa=0 |2 Havoe Miember| Concurrent Forces: A concurrant forse systcm is one which the linis of aution of the forecs all noer at cas poinh. Imleterminate Structure: A arruelus that han mors unknowns then wailable squations of equilitrium. Stable ithucture: Stubility requires there he enough reactions to suppod the applied foadn, and that those reactions are fist all parallel or octcument.
Join a community of subject matter experts. Register for FREE to view solutions, replies, and use search function. Request answer by replying!