Recent content by betty0202

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I hope I did the math right ## \int_{}^{} (\frac{m}{k-cv})dv=\int_{}^{}dt ## ## -m\ln(cv-k)=t ## ## \ln(cv-k)=-\frac{t}{m} ## ## v=\frac{e^{-\frac{t}{m}}+k}{c} ## ??

Homework Statement turning on the engine of a motorboat (v0=0), K = constant force due to the engine drag force of the water D = -cv find v(t)=? Homework Equations integration f=ma, a=dv/dt The Attempt at a Solution [/B] D+K = MA K-cv = MA (A=dv/dt) K-cv=Mdv/dt Mdv=dt(K-cv) ? i want to do...

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Homework Statement The potential energy of a system of two particles separated by a distance X is given by the equation below, where A,B,U0 are constant. U(X)=U0exp{[-(x/A)-1)((x/B)-]} (a). Find the force F(x) that each particle exerts on the other. (b). show that the is a X where the system...