An advertisement claims that a particular automobile can “stop on a dime.” What net force would be necessary to stop a 850 kg automobile traveling initially at 45.0 km/h in a distance equal to the diameter of a dime, 1.8 cm?

9. A boy slides down a hill on a sled (total mass of 35 kg) and coasts onto a flat plain with a speed of 7.0 m/s. Friction between the sled and the snow exerts an average force of magnitude 30 N on the sled. How far (in m) does the sled travel before stopping? (Note: First, find the acceleration of the boy using Unit Two material, then use this to compute the distance using Unit One material.)

A net force of 20 N is acting on a falling object. The object experiences air resistance of 6.0 N. If acceleration due to gravity is 9.81 m/s^2 what is the mass of the object?

You find it takes 190 N of horizontal force to move an unloaded pickup truck along a level road at a speed of 2.4 m/s . You then load up the pickup and pump up its tires so that its total weight increases by 42%while the coefficient of rolling friction decreases by 19%. Now what horizontal force will you need to move the pickup along the same road at the same speed? The speed is low enough that you can ignore air resistance..

The Lamborghini Huracan has an initial acceleration of 0.80gg. Its mass, with a driver, is 1510 kg. If an 80 kg passenger rode along, what would the car's acceleration be? Express your answer with the appropriate units.

A young girl is riding a bicycle that has a total mass (including the kid) of 21.2 kg. The girl is moving at 5.99 m/s on a flat road when suddenly she slams on the brakes and skids to a stop in 8.22 meters. What was the magnitutde of the average force due to friction acting on the bicycle? Remeber, the magnitude of a force is always positive. Assume a constant friction force measured in Newtons and 3 significant digits in your answer.

A stack of four textbooks sits on top of a desk. The mass of the bottom book is 5.0 kg, on top of which is a 4.5 kg book, then a 4.0 kg book, then a 3.5 kg book. What is the normal force exerted on each book?

You have been called to testify as an expert witness in a trial involving a head-on collision. Car A weighs 1515 lb and was traveling eastward. Car B weighs 1125 lb and was traveling westward at 43.0 mph. The cars locked bumpers and slid castward with their wheels locked for 18.5 ft before stopping. You have measured the coefficient of kinetic friction between the tires and the pavement to be 0.750. What speed (in miles per hour) was car A traveling just before the collision? (This problem uses English units because they would be used in a U.S. legal proceeding.) UF mph

A car traveling at 53 km/h hits a bridge abutment.A passenger in the car moves forward a distance of 65 cm (with respect to the road) while being brought to rest by an inflated air bag.What magnitude of force (assumed constant) acts on the passenger’s upper torso, which has a mass of 41 kg?

You have been called to testify as an expert witness in a trial involving a head-on collision. Car A weighs 1515 lb and was traveling eastward. Car B weighs 1125 lb and was traveling westward at 43.0 mph. The cars locked bumpers and slid eastward with their wheels locked for 17.5 ft before stopping. You have measured the coefficient of kinetic friction between the tires and the pavement to be 0.750 . What speed ? (in miles per hour) was car A traveling just before the collision? (This problem uses English units because they would be used in a U.S. legal proceeding.).