Solved: A car moves at speed v across a bridge made in the
Chapter 7, Problem 7.93(choose chapter or problem)
A car moves at speed v across a bridge made in the shape of a circular arc of radius r. (a) Find an expression for the normal force acting on the car when it is at the top of the arc. (b) At what minimum speed will the normal force become zero (causing the occupants of the car to seem weightless) if r 30.0 m?
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