A small ball moves without friction once along channel ABC (Fig. 1) and once along channel ADC. The gutter parts AD and BC are vertical, and the corners ABC and ADC are rounded. Draw graphically for both cases the dependence of the speed v of the ball on time t, if AB=BC=AD=DC=h. The speed of the ball at point A is zero. Which path (ABC or ADC) is the ball most likely to take from point A to point C?
Detailed solution. Format gif
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