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Problem Set 2

The document contains 6 physics problems related to motion along curved paths and banking angles. It provides information about cars, trailers, and roller coasters moving around unbanked and banked curves, including calculations of minimum radii, maximum speeds, and coefficients of friction.

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25 views1 page

Problem Set 2

The document contains 6 physics problems related to motion along curved paths and banking angles. It provides information about cars, trailers, and roller coasters moving around unbanked and banked curves, including calculations of minimum radii, maximum speeds, and coefficients of friction.

Uploaded by

ronald
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
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a. 3.1 s between the tires and the track is 0.3.

if unbanked curve of a radius of 200 m


the velocity of the car is 10 m/s, what is without either car or trailer skidding?
the smallest radius it may travel without a. 40 km/h
skidding? b. 75.2 km/h
a. 10 m c. 108 km/h
b. 34 m d. 143 km/h
c. 50 m
d. 68 m
3. If the car described in the previous
problem moves along a track that is
banked 5°, what is the smallest radius it
can travel without skidding?
a. 6 m
b. 18 m
a. 2.25 rad/s (clockwise) c. 26 m
b. 3.25 rad/s (counterclockwise) d. 47 m
c. 5.50 rad/s (clockwise) 4. Traffic travels at 100 km/h around a
d. 12.5 rad/s (clockwise) banked highway curve with a radius of
1. Two 2 kg blocks are linked as shown. 1000 m. What banking angle is necessary
Assuming that the surfaces are such that friction will not be required to
frictionless, what is the velocity of block resist the centrifugal force?
B if block A is moving at a speed of 3 a. 1.4°
m/s? b. 2.8°
c. 4.5°
d. 4.6°
5. The center of gravity of a roller coaster
car is 0.5 m above the rails. The rails are
1 m apart. What is the maximum speed
that the car can travel around the
unbanked curve of a radius 15 m without
the inner wheel losing contact with the
top of the rail?
a. 8.58 m/s
b. 12.1 m/s
a. 0 m/s c. 17.2 m/s
b. 1.30 m/s d. 24.2 m/s
c. 1.73 m/s 6. A 1530 kg car is towing a 300 kg trailer.
d. 5.20 m/s The coefficient of friction between all
2. An automobile travels on a perfectly tires and the road is 0.80. How fast can
horizontal, unbanked circular track of the car and trailer travel around an
radius r. The coefficient of friction

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