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On a curvy road, a motorist applies breaks and the speed of the vehicle reduced uniformly from 60 km/h at point A to 40 km/h at point B; the points A and B are 120 m apart. If the vehicle has a resultant acceleration of 2.5 m/s2 at point A, calculate the radius of the curvature of the road at this point. Calculate also the acceleration of the vehicle at point B where the road has a radius of curvature equal to 90 m.

On a curvy road, a motorist applies breaks and the speed of the vehicle reduced uniformly from
60 km/h at point A to 40 km/h at point B; the points A and B are 120 m apart. If the vehicle has a
resultant acceleration of 2.5 m/s2 at point A, calculate the radius of the curvature of the road at this
point. Calculate also the acceleration of the vehicle at point B where the road has a radius of
curvature equal to 90 m.

Grade:12th pass

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