The concept of variable banking for racetrack turns is shown in the figure. If the two radii of curvature are PA = 261 ft and PB = 276 ft for cars A and B, respectively, determine the maximum speed for each car. The coefficient of static friction is us = 0.75 for both cars. B Wodatut 1 Answers: VA= VB= i i 23 ft/sec ft/sec
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- A 2.0kg ball moves counterclockwise in a 0.75 m radius Vertical Circle. The Vt at the bottom is measured to be 7.0 m/s. What is the tension in the string at A, B, C, D? (See attachment)In 1959, Daytona Speed was added to the NASCAR racing circuit and introduced 31° banked curves for racing. This allowed stock cars to reach much higher speeds (around 200 mph) during a race. Today the steepest banked curves are found at Talladega Motor Speed Way at 33° with a turn radius of 1100 ft. The flattest track in NASCAR is Hew Hampshire Motor Speed Way with banked curves of 7° with a turn radius of 410 ft. a) Assuming no friction, what are the max speeds (in mph) without slipping toward the outer edge of the track at the Talladega and NH Motor Speedways? b) With friction (assume μs of 1.1 between the tires and the track)?question 5
- A car travels at a constant speed of 25.5 mi/h (11.4 m/s) on a level circular turn of radius 43.0 m, as shown in the bird's-eye view in figure a. What minimum coefficient of static friction, ?s, between the tires and the roadway will allow the car to make the circular turn without sliding?Asap plzzzzA small car with mass 0.600 kg travels at constant speed on the inside of a track that is a vertical circle with radius 5.00 m (Figure 1 Figure B V 5.00 m K 1 of 1 If the normal force exerted by the track on the car when it is at the top of the track (point B) is 6.00 N, what is the normal force on the car when it is at the bottom of the track (point A)? Express your answer with the appropriate units. F = Submit μÀ Value Provide Feedback 6 Request Answer d C Units Neview Constalls ? Next >
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