A car is travelling around a circular track of radius 100 m at a constant speed of 70 km/h. 1200 kg is the mass of the car. a) What is the centripetal acceleration? b) What is the magnitude of the centripetal force? r=100 m c) What type of force makes the car travel in a circle if the track is a level surface? A BC d) If the car were to hit ice and stay on ice so that u = 0.00 which of the three paths pictured at the right would the car immediately begin to follow? e) If the track were to be banked to 21° the car would be able to navigate the curve with only two forces (see the diagram at the left). What supplies the centripetal force in this case? f) Which would be larger the gravitational force or the normal force? g) If there was no friction and the car speed up to 90 km/h on the banked track what would happen to the car? h) If there was no friction and the car slowed down to 50 km/h on the banked track what would happen to the car? i) In order to navigate the banked track at a speed other than 70 km/h then friction must also be used. Which of the following two diagrams would represent the car taking the curve at 90 km/h? Diagram A Diagram B r=100 m

A car is travelling around a circular track of radius 100 m at a constant speed of 70 km/h. 1200 kg is the mass of the car. a) What is the centripetal acceleration? b) What is the magnitude of the centripetal force? r=100 m c) What type of force makes the car travel in a circle if the track is a level surface? A BC d) If the car were to hit ice and stay on ice so that u = 0.00 which of the three paths pictured at the right would the car immediately begin to follow? e) If the track were to be banked to 21° the car would be able to navigate the curve with only two forces (see the diagram at the left). What supplies the centripetal force in this case? f) Which would be larger the gravitational force or the normal force? g) If there was no friction and the car speed up to 90 km/h on the banked track what would happen to the car? h) If there was no friction and the car slowed down to 50 km/h on the banked track what would happen to the car? i) In order to navigate the banked track at a speed other than 70 km/h then friction must also be used. Which of the following two diagrams would represent the car taking the curve at 90 km/h? Diagram A Diagram B r=100 m

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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