The fastest speed achieved on Earth for any object, with the exception of subatomic particles in particle accelerations, is 15.8 km/s. A device at Sandia Laboratories in Albuquerque, New Mexico, uses highly compressed air to accelerate a small metal disk to supersonic speeds. Suppose the disk reaches its top speed from rest in 1.o s . If the disk has a mass of 0.20 g what is the unbalanced force ob the disk?