1. The problem statement, all variables and given/known data Given that the velocity of a particle in rectilinear motion varies with the displacement x according to the equation x* = bx-3 where b is a positive constant, find the force acting on the particle as a function of x. 2. Relevant equations Hint: F = mx** = mx* dx*/dx Note: All the x's have dots on top of them representing with respect to time. I used * here instead. 3. The attempt at a solution I used the hint and solved for the derivative of bx-3 and got -3bx-4. I put this back into the hint equation and ended up getting -3b2m all divided by x7 Is this correct? I think I am doing something wrong.