Equation found in previous question is #: x''=gsin(a)-b(v^2) 1. Rewrite the equation # as a differential equation for v as a function of x. 2. Solve the equation to find v as a function of x. Relevant equations: v=x'=dx/dt, x''=v'=a=dv/dt Attempt at 1: Using the relevant equations you can rewrite # as *: dv/dt=gsin(a) - b((x')^2) Which i am scepticle of being correct due to my inability to solve it in the 2nd part. Attempts at 2:Tried integrating but the whole((x')^2) confused me, i was thinking of making that (dx/dt)*(dx/dt) but got stuck again. Tried to rewrite * but i was expecting a first order LINEAR equation, so that i could use the integrating factor method, so alas that also didn't work. Any help would be appreciated, thankyou.