The floor of a rectangular meeting area was waxed and everyone needs to stay out. the length of the area is 5 meters. the width of the area is 9 meters. which is the correct unit of measurement to use when figuring how much tape is needed to surround the waxed 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).