1.136. A small body A starts sliding from the height h down an inclined groove passing into a half-circle of radius h/2 (Fig. 1.31). Assuming the friction to be negligible, find the velocity of the body at the highest point of its trajectory (after...

A small disc A slides down with initial velocity equal tozero from the top of a smooth hill of height H having a horizontal portion (Fig. 1.30). What must be the height of the horizontal por- tion h to ensure the maximum distance s covered by the...