In the figure below, a car is driven at constant speed over a circular hill and
ID: 2067558 • Letter: I
Question
In the figure below, a car is driven at constant speed over a circular hill and then into a circular valley with the same radius. At the top of the hill, the normal force on the driver from the car seat is 0. The driver's mass is 81.0 kg. What is the magnitude of the normal force on the driver from the seat when the car passes through the bottom of the valley?
In the figure below, a car is driven at constant speed over a circular hill and then into a circular valley with the same radius. At the top of the hill, the normal force on the driver from the car seat is 0. The driver's mass is 81.0 kg. What is the magnitude of the normal force on the driver from the seat when the car passes through the bottom of the valley?Explanation / Answer
let radius of the circle be r the force balance equation is: N+mv^2/r=mg N=0 so mv^2/r=mg v^2/r=g v^2=gr .Now in the second case N=mg+mv^2/r=2mg=2*81*9.81=1589.22 N