Texas Motor Speedway On October 28, 2000 Gil de Ferran set the single-lap average speed record for the then-named California Speedway—241.428 mi /h. The following year, on April 29, 2001, the Championship Auto Racing Teams (CART) organization canceled the inaugural Firestone Firehawk 600 race at the Texas Motor Speedway 2 hours before it was to start. During practice, drivers became dizzy when they reached speeds of more than 230 mph on the high-banked track. The Texas Motor Speedway has turns banked at 24 ° above the horizontal By comparison, turns on the Indianapolis Motor Speedway are banked at 9 ° . In qualifying runs for the race, 21 of 25 drivers complained of dizziness and disonentation. They experienced accelerations of 5.5g (5.5 times 9 .8 m/s 2 ) that lasted for several seconds. Such accelerations for such long time intervals have caused pilots to black out. Blood drains from their heads to their legs as they move in circles with their heads toward the center of the circle. CART felt that the track was unsafe for their drivers. The Texas Motor Speedway had tested the track with drivers before the race and thought it was safe. The Texas Motor Speedway sued CART What was the time for Gil de Ferran’s car to complete one lap of 1.5 mi during his record-setting drive? a. 16.8 s b. 18.4 s c. 22. 4 s d. 25.1 s e. 37.3 s
Texas Motor Speedway On October 28, 2000 Gil de Ferran set the single-lap average speed record for the then-named California Speedway—241.428 mi /h. The following year, on April 29, 2001, the Championship Auto Racing Teams (CART) organization canceled the inaugural Firestone Firehawk 600 race at the Texas Motor Speedway 2 hours before it was to start. During practice, drivers became dizzy when they reached speeds of more than 230 mph on the high-banked track. The Texas Motor Speedway has turns banked at 24 ° above the horizontal By comparison, turns on the Indianapolis Motor Speedway are banked at 9 ° . In qualifying runs for the race, 21 of 25 drivers complained of dizziness and disonentation. They experienced accelerations of 5.5g (5.5 times 9 .8 m/s 2 ) that lasted for several seconds. Such accelerations for such long time intervals have caused pilots to black out. Blood drains from their heads to their legs as they move in circles with their heads toward the center of the circle. CART felt that the track was unsafe for their drivers. The Texas Motor Speedway had tested the track with drivers before the race and thought it was safe. The Texas Motor Speedway sued CART What was the time for Gil de Ferran’s car to complete one lap of 1.5 mi during his record-setting drive? a. 16.8 s b. 18.4 s c. 22. 4 s d. 25.1 s e. 37.3 s
Texas Motor Speedway On October 28, 2000 Gil de Ferran set the single-lap average speed record for the then-named California Speedway—241.428 mi /h. The following year, on April 29, 2001, the Championship Auto Racing Teams (CART) organization canceled the inaugural Firestone Firehawk 600 race at the Texas Motor Speedway 2 hours before it was to start. During practice, drivers became dizzy when they reached speeds of more than 230 mph on the high-banked track. The Texas Motor Speedway has turns banked at
24
°
above the horizontal By comparison, turns on the Indianapolis Motor Speedway are banked at
9
°
.
In qualifying runs for the race, 21 of 25 drivers complained of dizziness and disonentation. They experienced accelerations of 5.5g (5.5 times
9
.8 m/s
2
) that lasted for several seconds. Such accelerations for such long time intervals have caused pilots to black out. Blood drains from their heads to their legs as they move in circles with their heads toward the center of the circle. CART felt that the track was unsafe for their drivers. The Texas Motor Speedway had tested the track with drivers before the race and thought it was safe. The Texas Motor Speedway sued CART
What was the time for Gil de Ferran’s car to complete one lap of 1.5 mi during his record-setting drive?
A ferris wheel has a radius of 50.0 m. Each of the sixty gondolas on the wheel takes 1.00 minute to
complete one revolution when it is running at full speed. Note: Ignore gravitational effects.
What is the centripetal acceleration of the gondola when the Ferris wheel is running at full speed?
a) 0.732 m/s²
b) 6.28 m/s²
c) 0.548 m/s²
d) 6.91 m/s²
e) 2.21 m/s²
A solar-powered car is traveling at constant speed around a circular track. What
happens to the centripetal acceleration of the car if the speed is doubled?
A) The centripetal acceleration remains the same.
B) The centripetal acceleration increases by a factor of 2.
C) The centripetal acceleration increases by a factor of 4.
D) The centripetal acceleration is decreased by a factor of one-half.
E) The centripetal acceleration is decreased by a factor of one-fourth.
An aircraft performs a maneuver called an "aileron roll." During this maneuver, the plane turns likea screw as it maintains a straight flight path, which sets the wings in circular motion. If it takes it 35s to complete the circle and the wingspan of the plane is 11 m, what is the acceleration of the wingtip?A) 5.6 m/s2 B) 1.0 m/s2 C) 0.99 m/s2 D) 0.18 m/s2
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