Category: Mechanics

Question Number 198363 by BHOOPENDRA last updated on 18/Oct/23 Answered by mahdipoor last updated on 18/Oct/23 $${F}_{{A}} ={A}\left({cos}\mathrm{30}\boldsymbol{\mathrm{j}}+{sin}\mathrm{30}\boldsymbol{\mathrm{i}}\right) \\ $$$${F}_{{B}} ={B}_{{x}} \boldsymbol{\mathrm{i}}+{B}_{{y}} \boldsymbol{\mathrm{j}} \\ $$$$\Sigma{F}=\mathrm{0\begin{cases}{\boldsymbol{\mathrm{j}}\Rightarrow\frac{\sqrt{\mathrm{3}}}{\mathrm{2}}{A}−\frac{\mathrm{12}}{\mathrm{13}}\left(\mathrm{350}\right)+{B}_{{y}}…

Question Number 197619 by mr W last updated on 24/Sep/23 Commented by mr W last updated on 24/Sep/23 $${assume}\:{the}\:{hill}\:{has}\:{the}\:{shape}\:{of}\:{a}\: \\ $$$${parabola}.\:{find}\:{the}\:{minimum}\:{speed} \\ $$$${with}\:{which}\:{a}\:{projectile}\:{should}\:{be} \\ $$$${launched}\:{from}\:{point}\:{C}\:{such}\:{that}\:{it}…

Question Number 196785 by Spillover last updated on 31/Aug/23 Answered by aleks041103 last updated on 03/Oct/23 $${Separation}\:{of}\:{variables} \\ $$$$\Psi\left({x},{t}\right)={X}\left({x}\right){T}\left({t}\right) \\ $$$$\Rightarrow{X}''{T}=−\frac{\mathrm{1}}{{c}^{\mathrm{2}} }{XT}'' \\ $$$$\Rightarrow\frac{{X}''}{{X}}=−\frac{\mathrm{1}}{{c}^{\mathrm{2}} }\:\frac{{T}\:''}{{T}}=−{a}^{\mathrm{2}}…

Question Number 196697 by mr W last updated on 29/Aug/23 Commented by mr W last updated on 29/Aug/23 �� Commented by mr W last updated…

Question Number 196558 by peter frank last updated on 27/Aug/23 Terms of Service Privacy Policy Contact: info@tinkutara.com