Задача id10278

A car weighing 1000 kg travels on a convex bridge, the radius of curvature of which is 250 m, at a speed of 72 km/h. With what force (in kN) does the car press on the bridge at a point whose direction from the center of curvature of the bridge is 30° with the vertical? g = 10 m/s2. |/ 3 = 1.72.

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