The figure at the right represents the design for a new hole for a miniature golf course. the new turf to cover the hole costs $1.50 per square foot. how much will i cost to cover the entire area?

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).