5, Some of the funniest videos on the web involve motorists sliding uncontrollably on icy roads. Here let's compare the typical stopping distances for a car sliding to a stop from an initial...
5, Some of the funniest videos on the web involve motorists sliding uncontrollably on icy roads. Here let's compare the typical stopping distances for a car sliding to a stop from an initial speed of 10.0 m/s on a dry horizontal road, an icy hori- zontal road, and (everyone's favorite) an icy hill. (a) How far does the car take to slide to a stop on a hori- zontal roadi if the coefficient of kinetic friction is = 0.60, which is typical of regular tires on dry pavement? H0 T Normal force free-body This is a diagram of the forces on the car. Let's neglect any effect of the air on the car, assume wheels lock up and the tires slide, and extend an x axis in the car's direction of motion. supports the car. that the Car (b) What is the stopping distance if the road is Gravitational force meos Frictional force opposes the sliding.pulls downward. covered with ice with μ = 0.10 ? \x -- (c) Now let's have the car sliding down an icy hill with an inclination of 0- 5.00 (a mild incline, nothing like the hills of San Francisco), The free body diagram shown in figure, then the positive direction of the x axis is down the ramp. What now is the stopping distance? (o Figure 6-4 (a) A car sliding to the right and finally stopping. A free body diagram for the car on (b) the same horizontal road and (o) a hill
5, Some of the funniest videos on the web involve motorists sliding uncontrollably on icy roads. Here let's compare the typical stopping distances for a car sliding to a stop from an initial speed of 10.0 m/s on a dry horizontal road, an icy hori- zontal road, and (everyone's favorite) an icy hill. (a) How far does the car take to slide to a stop on a hori- zontal roadi if the coefficient of kinetic friction is = 0.60, which is typical of regular tires on dry pavement? H0 T Normal force free-body This is a diagram of the forces on the car. Let's neglect any effect of the air on the car, assume wheels lock up and the tires slide, and extend an x axis in the car's direction of motion. supports the car. that the Car (b) What is the stopping distance if the road is Gravitational force meos Frictional force opposes the sliding.pulls downward. covered with ice with μ = 0.10 ? \x -- (c) Now let's have the car sliding down an icy hill with an inclination of 0- 5.00 (a mild incline, nothing like the hills of San Francisco), The free body diagram shown in figure, then the positive direction of the x axis is down the ramp. What now is the stopping distance? (o Figure 6-4 (a) A car sliding to the right and finally stopping. A free body diagram for the car on (b) the same horizontal road and (o) a hill