1.) A. In the Example, what is the constant of proportionality for cups of vinegar to cups of spray cleaner? 2.) B. Jasmine is making more of the spray cleaner. She only wants to use 1 cup of water. How much of the spray cleaner will jasmine make? Show your work.

someone please help me?

Amass weighing 16 pounds stretches a spring 8/3 feet. the mass is initially released from rest from a point 2 feet below the equilibrium position, and the subsequent motion takes place in a medium that offers a damping force that is numerically equal to 1/2 the instantaneous velocity. find the equation of motion if the mass is driven by an external force equal to f(t)=cos(2t).