For the normal force in the figure to have the same magnitude at all points on the vertical track, the stunt driver must adjust the speed to be different at different points. suppose, for example, that the track has a radius of 2.8 m and that the driver goes past point 1 at the bottom with a speed of 17 m/s. what speed must she have at point 3, so that the normal force at the top has the same magnitude as it did at the bottom?

answer:

driving on a frictionless banked corner.for a car travelling with speed varound a curve of radius r, determine for the normal force below to have the same magnitude at all points on the vertical track, the stunt driver must adjust the speed to be different at different points. suppose, for example, that the track has a radius of 2.8m and that the driver goes past point 1 at the bottom with a speed of 14m/s. what speed must she have at point 3, so that the normal force at the top has the same magnitude as it did at the bottom? if the roller coaster is moving at 10 m/s at point a, what force does the 60 kg person feel from his/her seat? a)if the roller coaster is moving at 5 m/s at point b, what force does the 60 kg person feel from his/her seat

explanation:

also remember from dynamics that: =circular motion uses=we define the + direction to be towards the center of the circle (ie. acis always positive

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