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- An automobile travels on a perfectlyhorizontal circular track of radius R. Thecoefficient of friction between tires and the trackis 0.30. If the car’s velocity is 15 m/s, what isthe smallest radius, R, it may travel withoutskiddingA race car travels 76 m/s around a circulartrack of radius 159 m What is the magnitude of the resultantforce on the 1600 kg driver and his car ifthe car does not slip?Answer in units of kN.A car is driving around a banked curve, with the road surface at an angle of 10.0º. If the radius ofcurvature of the road is 30.0 m and the coefficient of static friction between the tires of the carand the road is 0.65, what is the maximum speed (in km/hr) the car can go without skidding?
- A 1335 kg sports car rounds a flat curve of radius 40 m. Given that the coefficient of static friction betweeen the tires and road is 0.5, calculate what maximum speed the car can round the road without slidding.A car is driving on circular test track of radius 900 m at a constant tranlational speed. The friction foce between the tire and the track provides the centripetal force to keep the car in the corcular motion. If the lap time of the car is 58 s and the mass of the car is 1200 kg. fond the magnitude of the frictional force between the tire and the track in the unit N.A fullback is running a sweep around the left side of the line. As he rounds the turn, he is momentarily moving in circular motion, sweeping out a quarter-circle with a radius of 4.17 meters. If the 83.5-kg fullback makes the turn with a speed of 5.21 m/s, then what is his acceleration, the net force, the angle of lean (measured to the vertical), and the total contact force with the ground? PSYW a = ____________ Fnet = ____________ Fgrav = ____________ Fnorm = ____________ Ffrict = ____________ Fcontact = ____________ Angle of Lean = ____________
- Consider a train that rounds a curve with a radius of570 m at a speed of 160km/h (approximately 100mi/h ).(a) Calculate the friction force needed on a train passenger of mass 55 kg if the track is not banked and the train does not tilt. (b) Calculate the friction force on the passenger if the train tilts at an angle of 8.0° toward thecenter of the curveWhat is the maximum speed at which a car can round a curve of 25m radius on a levelroad if the coefficient of static friction between the tires and the road is 0.8?A 1750 kg car rounds a curve on a flat road of radius 65.0 m. If coefficient of static friction is 0.62what is the maximum velocity with which the car can follow the curved road without skidding?
- A motorcyclist is coasting with the engine off at a steady speed of 20.0 m/s but enters a sandy stretch where the coefficient of kinetic friction is 0.70. Will the cyclist emerge from the sandy stretch without having to start the engine ifthe sand lasts for 15 m? If so, what will be the speed upon emerging?A car is moving along a horizontal curve of radius 20 m, and coefficient of friction between the road and wheels of the car is 0.25. If acceleration due to gravity is 9.8 m/s², then its maximum speed is.Asap