The outer side of a circular track of
radius 200 m is raised to make an angle of 150
with the horizontal.
a) Which force provides the necessary
centric petal force for a car taking the circular
track?
b) Name the process by which the outer
side of a curved track is raised a little above
the inner side.
c) Using the data provided in this case,
determine the maximum permissible speed to
avoid skidding (given  s = 0.25 ).

Dear student,
a) 
force of static friction  provides necessary centripetal force
b) The process is known as banking of the tracks
c) Vm=Rgμ+tanθ1-μtanθ =200×100.25+tan151-0.25×tan15=33.32m/sRegards

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