8. Centripetal Forces & Gravitation
Banked Curves
4:10 minutes
Problem 5.106a
Textbook Question
Textbook QuestionA car drives at a constant speed around a banked circular track with a diameter of 145 m. The motion of the car can be described in a coordinate system with its origin at the center of the circle. At a particular instant the car’s acceleration in the horizontal plane is given by
a→ = (-15.7 î - 23.2 ĵ)m/s² .
(a) What is the car’s speed?
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