On Monday a team of street sweepers cleaned 2 1/2 city blocks Tuesday the team cleaned 1/4 as many blocks as on Monday how many city blocks did the streets sweepers clean on tuesday

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).