1. The problem statement, all variables and given/known data An engineer designing a system to control a router for a machining process models the system so that the router's acceleration during an interval of time is a=-1.8vm/s . When t=0 , its position is s=0 and its velocity is 2.4 m/s. Determine the router's position (unit: m) at s. 2. Relevant equations a=dv/dt, v=ds/dt 3. The attempt at a solution First i did -1.8v=dv/dt did some integration and work and found v = e^(-1.8t) I then used e^(-1.8t) = ds/dt and solved for s and subsituted t=0(lower bound) and t=0.75(upper bound) and found s = 0.412m I am not sure if the first step I did is allowed since I never used the v=2.4. Please tell me my mistakes. Thanks!