Green coffee cherries (caf verde) are to be sorted from ripe cherries (cafe madu

Question

Green coffee cherries (caf verde) are to be sorted from ripe cherries (cafe maduro) using a bouncing test designed by Sr. Alam Brito at his farm in Barrio Lim n. To accomplish this, green cherries must clear the fixed bar A at the top of their rebound height when dropped from rest through a vertical distance of h=10 feet onto the inclined plywood plate. If green coffee cherries have a coefficient of restitution of 0.4 and a coefficient of friction of 0.5 on plywood, locate the position of the bar A by specifying the vertical height (H) and the horizontal distance (s).

Explanation / Answer

small pic please? difficult to read

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