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A banked turn (or banking turn) is a turn or change of direction in which the vehicle banks or inclines, usually towards the inside of the turn.For a road or railroad this is usually due to the roadbed having a transverse down-slope towards the inside of the curve.
The resultant or net force on the ball found by vector addition of the normal force exerted by the road and vertical force due to gravity must equal the centripetal force dictated by the need to travel a circular path. The curved motion is maintained so long as this net force provides the centripetal force requisite to the motion.
In horizontal curves, the cross slope is banked into superelevation to reduce steering effort and lateral force required to go around the curve. [1] All water drains to the inside of the curve. [ 2 ] If the cross slope magnitude oscillates within 1–25 metres (3–82 ft), the body and payload of high (heavy) vehicles will experience high roll ...
On an inclined plane as the angle increases the normal force decreases as more and more of the weight is supported by friction. But on a banked curve as the slope increases the normal force goes up as the centripetal force increases. On e.g. a racetrack this corresponds to the steepest banked curves being at the sharpest/tightest corners.
If a car is traveling at a constant speed along a straight road, then a passenger inside is not accelerating and, according to Newton's second law of motion, the net force acting on them is therefore zero (all forces acting on them cancel each other out). If the car enters a curve that bends to the left, the passenger experiences an apparent ...
In curved track, it is usually designed to raise the outer rail, providing a banked turn, thus allowing trains to maneuver through the curve at higher speeds that would otherwise be not possible if the surface was flat or level. It also helps a train steer around a curve, keeping the wheel flanges from pressing the rails, minimizing friction ...
A woman’s car plummeted about 60 feet from a bridge, crashing into the riverbed below, during a possible “road rage incident,” according to Oklahoma officials and news reports.
The velodrome at Nutley, New Jersey, a 1 ⁄ 8 mi (200 m) oval banked at 45 degrees (generating lap times of 8 seconds or less) and built from 1 in × 12 in (25 mm × 300 mm) lumber on edge, was "unquestionably the deadliest". [28]