A car is approaching a wall at a speed of 27.1 m/s. If the distance d is 100 m, a. Determine the friction coefficient required to stop the car before it hits the wall. b. Determine the friction coefficient necessary for the car to avoid the wall by turning (not braking) and following the circular path shown. (friction supplies the centripetal force)

A car is approaching a wall at a speed of 27.1 m/s. If the distance d is 100 m, a. Determine the friction coefficient required to stop the car before it hits the wall. b. Determine the friction coefficient necessary for the car to avoid the wall by turning (not braking) and following the circular path shown. (friction supplies the centripetal force)

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Question

A car is approaching a wall at a speed of 27.1 m/s. If the distance d is 100 m,

a. Determine the friction coefficient required to stop the car before it hits the wall.

b. Determine the friction coefficient necessary for the car to avoid the wall by turning (not braking) and following the circular path shown. (friction supplies the centripetal force)

Definition Definition Force on a body along the radial direction. Centripetal force is responsible for the circular motion of a body. The magnitude of centripetal force is given by F C = m v 2 r m = mass of the body in the circular motion v = tangential velocity of the body r = radius of the circular path

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