A mass of 6 kg is placed on an incline with a coefficient ofstatic friction of 1.80 and coefficient of kinetic friction of1.28. No additional forces are acting on it and it is raised slowlyfrom a small angle and it begins to slide at some angle. If 10degrees is added to this angle, and the mass started from rest froma vertical height of 28 meters, how much longer would it take totravel down the incline to the bottom compared to if there was nofriction on the incline? Answer in seconds.
