Q. A circular curve of highway is designed for traffic moving at 92km/h. suppose the traffic consists of cars without negative lift. (a) If the radius of the curve is 210m, what is the correct angle of banking of the road? (b) If the curve were not banked, what would be the minimum coefficient of friction between tires and road that would keep traffic from skidding out of the turn when travelling at 92km/h?
Q. Two plane mirrors facing each other are 10 m apart. A woman stands 3 m from one of the mirrors and looks at the mirror and sees two distinct images. How far are these images from the woman?