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2. A 2500 kg car is driving at 65.0 km/h on a horizontal level road. As...
a 2500 lb car is driving down a 10 deg slope at 45 mph. the coefficient of dynamic friction is .8 between road and tires. the driver Dees an obstacle 30 m ahead and slams on brakes. how fast is the car moving when it hits the obstacle?
A car of mass M = 1300 kg traveling at 65.0 km/hour enters a banked turn covered with ice. The road is banked at an angle θ, and there is no friction between the road and the car's tires as shown in (Figure 1) . Use g = 9.80 m/s2 throughout this problem. r= 91.43 m. Now, suppose that the curve is level (θ=0) and that the ice has melted, so that there is a coefficient of static friction μ...
A car of mass M= 1300 kg traveling at 65.0 km/hour enters a banked turn covered with ice. The road is banked at an angle , and there is no friction between the road and the car's tires. (Intro 1 figure) . Use g= 9.80 m/s^2 throughout this problem. What is the radius (in meters) of the turn if = 20.0 (assuming the car continues in uniform circular motion around the turn)?
A 920-kg sports car collides into the rear end of a 2100-kg SUV stopped at a red light on a flat dry level road. The bumpers lock, the brakes are locked, and the two cars skid forward 4.0 m before stopping. The police officer on scene, using her SmartPhone, looks up the coefficient of kinetic friction between rubber tires and concrete road as 0.80, she then calculates the speed of the sports car at impact. What was that speed?
A car of mass M = 1500 kg traveling at 65.0 km/hour enters a banked turn covered with ice. The road is banked at an angle ∘, and there is no friction between the road and the car's tires as shown in (Figure 1). Use g = 9.80 m/s2 throughout this problem. What is the radius r of the turn if θ = 20.0 ∘ (assuming the car continues in uniform circular motion around the turn)?
A car of mass M = 800 kg traveling at 55.0 km/hour enters a banked turn covered with ice. The road is banked at an angle ?, and there is no friction between the road and the car's tires as shown in(Figure 1) . Use g = 9.80 m/s2 throughout this problem. Now, suppose that the curve is level (?=0) and that the ice has melted, so that there is a coefficient of static friction ? between the road and...
Now, suppose that the curve is level (theta = 0) and that the ice has melted, so that there is a coefficient of static friction mu between the road and the car'stires. (Part B figure) What is mu_min, the minimum value of the coefficient of static friction between the tires and the road required to prevent the car fromslipping? Assume that the car's speed is still 65.0 km/hour and that the radius of the curve is given by the value...
A car is traveling at 55.0 mi/h on a horizontal highway. (a) If the coefficient of static friction between road and tires on a rainy day is 0.102, what is the minimum distance in which the car will stop? (b) What is the stopping distance when the surface is dry and ?s = 0.605?
A car of mass M = 1500 kg traveling at 55.0 km/hour enters a level turn (θ=0), and there is a coefficient of static friction μ between the road and the car's tires. What is μmin, the minimum value of the coefficient of static friction between the tires and the road required to prevent the car from slipping? Assume that the car's speed is still 55.0 km/hour and that the radius of the curve is 65.4 m .
You are driving your car along a flat, curved road; the curve in the road is a segment of a circle with radius 50 meters. (We call this a "radius of curvature"). How fast can the car drive around the curve if the coefficient of static friction between the tires and the road is 1.0 (tires on dry pavement)? What if the coefficient of friction is 0.2 (tires on ice)?